This is the parts and code for my Earfingers project, a tactile human/computer interface designed with the intent of enabling the perception of sound through touch. The details are over on instructables here: http://www.instructables.com/id/Earfingers-how-to-induce-the-perception-of-sound-/

Thanks to tbuser for the awesome openscad text.

Print if you'd like, read the code if you dare. The terminal blocks could be generally useful, they're designed for #4 sheet metal screws and washers. Also, if you need yet another option for an Arduino mount, there's a few versions in the openscad code.