Custom Building Kits: Made for Your Kid

Why settle for the same kit as everyone else? Design a build around your child's interests, pick the right difficulty, and get a kit that's truly one-of-a-kind.

Why Custom Beats Generic

InventShack CustomSubscription Boxes
DesignYour child's ideaPre-made for everyone
MaterialsLaser-cut wood, 3D-printed PLA, real hardwareCardboard, foam, stickers
MechanismsGears, springs, axles — things that moveStatic or simple
Age TuningExact age and skill levelBroad age ranges
ReplayabilityReal builds that lastOften single-use crafts
LearningEngineering principles in every buildVaries widely

How You Customize Your Kit

The Idea

Describe anything — a marble machine, a treasure box with a lock, a wind-powered car. The AI handles the engineering.

Age & Difficulty

Select the age range and difficulty. Younger kids get simpler connections and bigger pieces. Older kids get gears and complex mechanisms.

Materials & Size

Choose between laser-cut birchwood, 3D-printed PLA, or a mix. Parts can range from pocket-sized to desktop builds.

Refine & Iterate

Not quite right? Tell the AI to change colors, add features, simplify a mechanism, or swap parts. Unlimited revisions.

Real Materials, Real Builds

Every InventShack kit uses real engineering materials — not cardboard and tape. Precision laser-cut birchwood panels, custom 3D-printed PLA brackets and gears, and real hardware like stainless steel screws, springs, and rubber bands.

The result is a build that feels substantial, works mechanically, and lasts. Kids learn what real materials can do — the strength of wood, the flexibility of PLA, the tension of a spring — through hands-on experience.

The Perfect Gift for Builders

A custom building kit makes an unforgettable gift. Instead of a generic toy, give a child a kit designed specifically around their passion — whether that's dinosaurs, space, vehicles, or contraptions that launch things across the room.

Birthdays

A one-of-a-kind invention kit designed around their favorite thing.

Holidays

A hands-on project they'll actually build, not just unwrap and forget.

Learning Moments

Spark curiosity in engineering, design, and problem-solving.

Design your custom kit

Tell the AI what your child loves, and it creates a one-of-a-kind build.

Start Designing Now