Customizable pawns

I liked HunterGreen's [Numbered Pawns](http://www.thingiverse.com/thing:128203), but I wanted them larger to match 25mm figures. I also wanted the numbers engraved instead of cut all the way through, so there would be less cleanup (it's a humid day here and my printer is stringing a lot!), and so you can read the pawns naturally from either side.

So, I rebuilt them in OpenSCAD; here it is as a customizable file in case you want to tweak the parameters.

These also work well with my [m