I decided to create a little skateboard that you can easily take almost everywhere in your backpack. I now want to share it with you. And I hope you'll envoy.
I admit that it isn't realy easy to skate with it,at least in the beginning but when you start to get used, it is very pleasent. You can even make some little tricks (if your infill is dense enought).

The price of this skate is about 10 euros , if you count the PLA and the iron rods, the screws and bolts, and if you recycle some parts from an old skate.