Electric belt slider vehicle

Simple robot vehicle

Road roller

Electricity generator with syringe fan set

Pencil sharpener electric

 Tank robotic vehicle

Hand crank car

2 Wheel tractor with trailer

Electric boat

360 degree rotating fan

Mini pump

Remote controlled tank

Note: These are DIY experiment ideas, You may need to arrange some tools and material at your own. The shown Batteries / components may be different from the material you have in your kit.