Squeaky horn for handle bars:
EZ Training wheels:
Service to fix training wheels that I couldn't manage to put on myself:
New training wheels and (service to install them) to replace the ones the broke after one use:
Bike seat for adult bike so younger brother can ride along on bike trips:
Sweeping the dust and spider webs off the bike before putting a tarp over it for the winter:
BTW, why is everything for sale at Toys R Us have a price that ends in 99 cents?