Capacitive Stylus under $50

Stylus will be used between a mixture of iPad, Blackberry Playbook and iPhone surfaces.

Currently using a Wacom Bamboo with extra firm tips, but I'm displeased with the amount of "squish" even in those tips. I'm looking for something with a very firm tip, maybe something like a resistive style tip, that works on capacitive touch screens.

Any thoughts or suggestions, I'm keen on a very small surface area on the stylus tip if possible.