chasetheangel, thanks! It makes Your painting work even more outstanding, then

cue, thanks, but of course I've saw it, and a few dozens of other DIY concepts. What I'm trying to achieve is stylus with smallest possible tip (that is still detected by #@$#@$ capacitive controller). Sponge doesn't work well with N950 (N9) screen. The more conductive material at the end, the better, but we don't want to use metal there, as it would scratch the screen.

Conductive foam is one option. SpeedEvil also suggested some kind of conductive clear silicon, whatever it is.

/Estel