I was searching for some ideas on a Christmas present for my girlfriend in December 2007 when I came across someone who has crafted a USB flash drive into a LEGO® brick (link). I thought that is a really great idea. So I started to souce for a really small USB flash drive.
I made a prototype out of an old 2×4 red brick to test that the glue and such don’t destroy the flash drive, I made one out of a yellow brick for her. She loved it. 
When I used my USB flash drive in front of my friends, collegue, clients, etc. They were all very amazed and asked where I bought it. I told them that you can’t buy these and they pestered me to make them. That’s how I started making these little bundles of joy.
