I have round clutch cover stickers for sale. Some say "49cc" on them if you need to make your 80cc seem less scary to the authorities. XD. These are sold on ClutcherZ | Teespring I have the price set as low as I can ($2.00) profit for me) They sell for $5.50 on Teespring + $2.50 shipping for a total of $8.00. Sadly Teespring doesn't seem to do a great job cutting these out. I bought a sample and had to take the scissors to it to get it perfectly round. I currently have 15 designs some with "49cc" and some without. Many are just whimsical. They measure 4.125" with the die-cut border that is added by the company.