Parametric stuff seems to be all the rage these days so here's another one. This is a push pin for hanging stuff up on a cork board or the wall of a cube (probably not strong enough for drywall). I tried to make the default values about the same size as a normal small push pin.
Updated: 04/20/2011 - Made it easier to use in other scad scripts
Every nitty gritty detail of this pin is parameterized to make it easy to create whatever size pin you want. Print it out and start poking stuff.