This is a stylus design for a Nintendo DS (first generation). It suits in the stylus holder on the back of the DS and it is very stable.

I made this one with an BFB 3D Printer. Use no extra surface and two extra skins. Made of PLA plastic. You need an little cooler dummy (for example a cylindric near the tip of the stylus) to make the holder on the end perfekt. Print it lying for highest solid.

You should process the surface with sandpaper (40 to 60 to 120) for a perfect fit. A little bit subsequent works are needed.