I was going to write an article over great ideas that were probably made on the crapper...but then I finished, flushed, and I couldn't think of anymore.
Other things have been boat-designs, web-layouts, a few drawings, and computer setups.
I came up with a really good one for the automotive industry. Unfortunately, its such a nasty industry to get your foot into, I'll never make any money off of it. The best part is that it has a really cool acronym!