About 10 years ago, I purchased some of those really cool looking sleeve things that you can put on the spokes of your bicycle, that are hollow inside and can be slipped/wrapped on/around the spokes of the wheels, they cover the length of the spoke, and apparently they glow in the dark. Lately, I have been looking to buy some more of those spoke sleeves and can not find them, not even on Ebay. And bicycle shops have not carried them for like eons.