It's just something I made in like one hour and half. I just need an outline of this for printing, that's why it's not finished in the other side.
![](https://i.imgur.com/h52oIL5.png)
And this is exactly what I was looking for. I made it following [This tutorial](https://www.youtube.com/watch?v=7afTgY5V7pw).
Edit: now you can download this model. It's a .blend file and, of course, it's free.