So what I did for my shoe was cut a channel and then got a wall paper brush and cut all the bristles off it and epoxied them into the channel. It took a little while but it works great so far.

Here is the design for the shoe I made: https://drive.google.com/file/d/0B7e...it?usp=sharing

its all made of 12mm acrylic and has press fit magnets which go into each part of the shoe so i can snap the brush part off for tool changes etc.