Spin-top dice

I wonder why I have never seen this before. A dice that you spin like a top. Inspired from a Dreidel.

I had to try it. I think I found my answer. It's very hard to make one that give equals chances to each faces. I'm happy with the result, it's fun to play with, but some numbers seems to come up more often than other. Maybe it's my imagination, I should build a table and actually count them.

I made 3 versions. I'm only uploading only one because the other are awkward to use or look odd.