Stack Them, and shake them. and your work is done.

Object size is 120mm x 120mm x 30mm 45 Degree supports suggested.

Added a OpenSCad File to make your own trays. just open it up set the var and have let it fly!

Stack up the trays from smallest to largest, put the solid tray on the bottom. then shake them.

Trays are labeled for the hole in them not the coin they collect. For example the Dime tray will collect Pennies letting dimes through, and the quarter tray will collect 50cent coins letting all others through.

inspired to build this thx to this post by IWorkInPixels http://www.thingiverse.com/thing:30571 wish him luck in finishing his mechanism.