Accessorizing a scooter is one of the best things about having one. Accessories are small, they are sometimes cheap, and they are addicting.
The easiest and cheapest accessory is a license plate holder and screws. If you go to one of your local yearly bike shows, or look online, and you should be able to pick up something pretty cool for a few dollars. My total cost was about $25.00 for this entire ensemble.
Handlebar grips are also a good way to add those little touches of individuality.
If you have $money$ you can get a customized seat cover from Pirate Upholstery. Or look for seat covers in the UK or homemade in United States on Etsey. Thats if you have a Vespa or a Vino or a Buddy. Unfortunately, us Piaggio BV500s have slim pickens when it comes to seat covers and most other accessories. DON'T ASK ME WHY, I DON'T KNOW WHY THE UNIVERSE HAS CONSPIRED AGAINST ME!
Just make sure you take it easy. Sometimes it is easy to take scooter accessorizing too far!