I had a friend ask me recently why I don't sell a certain kind of fleece stuffed animals that I make (I give them away as baby gifts) and I told her it was because I think they are too obviously based on a particular book of patterns and I just don't want the hassle of potential copyright issues. She snorted, I snorted...but I'm still not going to sell them. You hear the most bizarre stories of people being sued for less...
Alison