My first job out of college (at a realtime backup company, back in ~2003) was doing a marketing push and had a shirt designed featuring a chameleon (because our backup software was great at dealing with changing files, I guess?).
However, in order to save some money on the printing, they opted not to print the brown color for the branch, subbing in green instead. So now instead of a chameleon resting on a tree branch, it's a chameleon resting on its own massive penis
They understandably never actually released these shirts, but I was able to convince my boss to give me one for comedic value