Here is a brilliant crowdfunding project.
BLINKENBIKE is Danish designed balance bike that takes the concept of a balance bike to a higher level of learning. It is not only a balance bike but an entire system. With their bare hands and with the use of the included tools and assembly knobs, kids from just 18 month can construct and design a balance bike of their own liking, by using purchased- or homemade cardboard accessories – creativity is the only limitation.
Read more and/or support the project on Kickstarter here.