MJI Guide: Motorised Mechanical & Botanical Sets
MJI is a building-brick brand with two very different lines: mechanical creatures that move, and botanical sets that turn bricks into flowers, orchids and bouquets. Toy Haven sells the mechanical sets as Motorised editions, with the motor included, so your finished shark, dinosaur or dragonfly actually moves. This guide explains both lines, how our pre-orders work and which set to start with.
At a glance
- Lines: Mechanical Creatures (Motorised) and Botanical (flowers)
- Mechanical sets: €19.95–€49.95, about 690–1,770 pieces
- Botanical sets: €7.95–€49.95, from 77 pieces
- Motor: included with every Motorised edition
- Recommended age: 8+ or 12+, depending on the set
- Availability: a few sets in stock, most on pre-order
- Bricks: many pieces are the same size as classic building blocks. Fits standard building bricks (incl. LEGO®).
How MJI pre-orders work
Most MJI sets are sold as pre-orders. A pre-order ships about 3–4 weeks after the pre-order target is reached. The product page always shows whether a set is in stock or on pre-order, and we list both clearly below. If you want to build this week, start with the in-stock sets.
In stock now
MJI 13058 Semi-Mechanical Frog
- Pieces: 898
- Price: €19.95
- Age: 12+
- Status: In stock
- Highlights: moves on its own, built-in lights
MJI 13054 Mechanical Shark
- Pieces: 687
- Price: €29.95
- Age: 12+
- Status: In stock
- Highlights: moves on its own, built-in lights
MJI 13098 Mechanical Pink Dolphin
- Pieces: 888
- Price: €34.95
- Age: 12+
- Status: In stock
- Highlights: pink lights with toggle switch
MJI 13099 Mechanical Blue Dolphin
- Pieces: 888
- Price: €34.95
- Age: 12+
- Status: In stock
- Highlights: ice-blue lights with toggle switch
MJI 13115 Butterfly Orchid
- Pieces: 619
- Price: €19.95
- Age: 12+
- Status: In stock
- Highlights: a flowering orchid that lasts forever
Motorised mechanical sets
MJI's mechanical creatures show their gears, axles and linkages on the outside, so you see how the movement works while you build. Our Motorised editions include the motor, so the finished model moves on its own; most also have built-in lights that run on button-cell batteries (listed on each product page). Besides animals, the range includes mechanical weapons such as the Ice-Core Battle Axe, Blue-Core War Hammer and Mechanical Chainsaw. Our picks:
MJI 13085 Mechanical Octopus
- Pieces: 1,768
- Price: €44.95
- Age: 12+
- Status: Pre-order: ships 3–4 weeks after the pre-order target is reached
- Highlights: all eight tentacles move together; the biggest MJI set we sell
MJI 13087 Mechanical T-Rex
- Pieces: 1,268
- Price: €39.95
- Age: 12+
- Status: Pre-order: ships 3–4 weeks after the pre-order target is reached
- Highlights: ice-blue lights, a classic dinosaur pick
MJI 13092 Mechanical Piranha
- Pieces: 1,085
- Price: €34.95
- Age: 12+
- Status: Pre-order: ships 3–4 weeks after the pre-order target is reached
- Highlights: ice-blue lights with toggle switch
MJI 13086 Mechanical Dragonfly
- Pieces: 866
- Price: €34.95
- Age: 12+
- Status: Pre-order: ships 3–4 weeks after the pre-order target is reached
- Highlights: all four wings flap; needs AA batteries
MJI 13155 Mechanical Narwhal
- Pieces: 1,228
- Price: €39.95
- Age: 8+
- Status: Pre-order: ships 3–4 weeks after the pre-order target is reached
- Highlights: yellow lights, about 48.5 cm long
MJI 13106 Mechanical Unicorn
- Pieces: 1,499
- Price: €44.95
- Age: 8+
- Status: Pre-order: ships 3–4 weeks after the pre-order target is reached
- Highlights: red lights, a fantasy favourite
MJI 13055 Mechanical Mantis
- Pieces: 999
- Price: €24.95
- Age: 12+
- Status: Pre-order: ships 3–4 weeks after the pre-order target is reached
- Highlights: the most affordable full motorised set
Botanical sets
The botanical line turns bricks into flowers that never need water: single stems, succulents, orchids, bonsai, bouquets and framed flower pictures. They make calm, decorative builds and popular gifts. Some, like the Red Rose and Morandi Bouquet, light up. Also look at the Succulents B assortment if you want more mini plants. Our picks:
MJI 13030 Red Rose
- Pieces: 77
- Price: €9.95
- Age: 12+
- Status: Pre-order: ships 3–4 weeks after the pre-order target is reached
- Highlights: a light-up rose, an easy first build or gift
MJI 13007 Succulents A (8 styles)
- Pieces: 77–123
- Price: €7.95
- Age: 12+
- Status: Pre-order: ships 3–4 weeks after the pre-order target is reached
- Highlights: 8 boxed mini succulents, one style per box
MJI 13116 Plum Blossom Bonsai
- Pieces: 599
- Price: €24.95
- Age: 12+
- Status: Pre-order: ships 3–4 weeks after the pre-order target is reached
- Highlights: a bonsai for your desk
MJI 13112 Morandi Bouquet
- Pieces: 963
- Price: €34.95
- Age: 12+
- Status: Pre-order: ships 3–4 weeks after the pre-order target is reached
- Highlights: built-in lighting
MJI 13048 Orchid, 2 colours in 1
- Pieces: 1,192
- Price: €39.95
- Age: 12+
- Status: Pre-order: ships 3–4 weeks after the pre-order target is reached
- Highlights: build it in two colour schemes
MJI 13060 Vast Glaze Flower Frame
- Pieces: 756
- Price: €44.95
- Age: 12+
- Status: Pre-order: ships 3–4 weeks after the pre-order target is reached
- Highlights: a framed flower picture to display
MJI 13039 Fantasy Night Bouquet
- Pieces: 982
- Price: €49.95
- Age: 12+
- Status: Pre-order: ships 3–4 weeks after the pre-order target is reached
- Highlights: a large statement bouquet
Mechanical or botanical?
Mechanical (Motorised)
- Moves: yes, motor included
- Lights: most sets
- Pieces: about 690–1,770
- Price: €19.95–€49.95
- Age: 8+ or 12+
- Best for: builders who love gears and movement, dinosaur and sea-life fans
Botanical
- Moves: no
- Lights: some sets
- Pieces: 77–1,192
- Price: €7.95–€49.95
- Age: 8+ or 12+
- Best for: relaxing builds, home decor and gifts
Which MJI set should I start with?
- Build this week: the in-stock Semi-Mechanical Frog or Mechanical Shark.
- Small budget: the Red Rose or a Succulents box.
- Biggest wow factor: the Mechanical Octopus, with all eight tentacles moving.
- Younger builders (8+): the Mechanical Narwhal or Mechanical Unicorn.
- A gift that lasts: an orchid or a flower frame.
Frequently asked questions
Is the motor really included?
Yes. Toy Haven sells MJI mechanical sets as Motorised editions: the motor is included for free, so the model moves on its own.
When does a pre-order ship?
About 3–4 weeks after the pre-order target is reached. The product page shows whether a set is in stock or on pre-order.
Do I need batteries?
Many sets have lights that use button-cell batteries (LR41 or LR44). Some sets, such as the Mechanical Dragonfly, use AA batteries for the power pack. Each product page lists what your set needs.
Do MJI bricks work with other brick sets?
Many MJI pieces are the same size as classic building blocks. Fits standard building bricks (incl. LEGO®).
What age are MJI sets for?
MJI recommends 8+ or 12+, depending on the set. They are great for anyone who likes to build, play or display.
Explore MJI at Toy Haven
See every set in our MJI collection, or go straight to the mechanical sets or botanical sets. All current pre-orders are in our pre-orders collection. Want the background on the brand? Read What is MJI?.
Toy Haven is run by two brothers who have been selling toys since January 2024: 65,000+ toys sold and 18 conventions so far. We welcome everyone who builds, plays or collects. Free shipping within the Netherlands on orders from €60.
Stock changes quickly, so check the product page for current availability.
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