Wells Fargo

Wells Fargo offers you the opportunity to customize your checks and credit card. They offer numerous christian themes (fish, crosses), etc. I tried to submit the spaghetti monster and was declined - I believe due to copyright issues. Does anyone have any suggestions on a symbol that I could use which is not protected by copyright?
There are several on this website. You should check first to see if any are copyrighted. http://symboldictionary.net/?p=2087 Lois