How can I affix keyboard keys to a suit jacket? I have been collecting used keyboards for a while. Mostly to get the plastic circuit map underneath for making wallets and what not. Recently I ran into this picture of a suit made of keyboard keys:



Image from TomsGuide.com

My problem is I can't figure out how the keys are attached to the suit. Most keyboard keys don't lend themselves well to be attached to anything other than the keyboard itself (obviously). If you look at the bottom of most keys there is not much surface area to work with. 



Image from techgage.com

So it's not like I can sew this. 

What can I do to attach keyboard keys to clothing. In particular a suit jacket like the one pictured above.
The simplest approach is a hot needle.

Hold a rather thick needle with pincers (pretty much any kind) and heat it up - stove fire will take seconds to make it glowing hot, but a candle flame should suffice. Melt the hole through both sides of the stubs. The needle should be considerably thicker than the one you'll use for sewing because the holes close up a bit when you remove the needle.