ZPG made about $25K in 2008, says Jonny Waldman, working only one day a week at it, and he's letting the business for for $30K. ZPG prints and sells the popular "$0.00" and "53 Miles Per Burrito" bike stickers, among other things.
He tells me that ZPG stuff is for sale in at least 37 stores and distributed nationally by the Merry Sales Company. Powell's Books in Portland, OR, for one, buys a few hundred dollars worth of patches and stickers every month from ZPG.
Details: ZPG is for sale.