Arduino Pro Mini Clone Holder

A simple design based on http://www.thingiverse.com/thing:596400 but for a Pro Mini clone (see photo). My board measures 19mm x 34mm if that helps.

I made 2 versions, one with screw holes and one plain, initially I had a 3rd version with a slot intended to mate with a prototyping board but it didn't work so I've removed it.