Had my 10 year old Klein lifted off the front porch 6 months ago, thumb shifters and all. A friend with a half-dozen rides loaned me a old converted Joe Breeze singlespeed, which proved entertaining. After a couple months, and much stalling on my part, the JB was re-possesed by its rightful owner and I was stuck bikeless. Decided it was a good problem to have and promptly built up a 1FG. Just added the cranks (watch out for those green chainrings!) and my cage pedals are not worthy...

Posted some other pics in singlespeed forum.