Saw this cool circuit board stylus from Spun Pens on Etsy (via a Make Online blurb) and decided it was just too cool not to have.
It was a little bit smaller than I expected, but that was just because the shiny and want factor kept me from reading the full description so I really had no idea how big it would be. It appears to be made with an actual circuit board, not just printed on something. It would be interesting to find out how it gets rolled up like that.
A dome of some kind of soft material allows the stylus to work with capacitive touch screens. It works really well, better than some other styli that I've used. It requires a little bit of a firmer touch than you'd need using a finger, but not too much and doesn't take long to get used to.
It's pretty cool.