I went to my local home improvement store and got some spray on paint remover, spray paint, and a baking tin. Spray the thinner over the paint, let soak in the tin and repeat until the paint starts to bubble off - I used a tooth brush to get it clean. Rinse and dry with a towel, then spray em. Its nice to have some extra grip around to sand off rust or paint that wouldn't come off during the cleaning process too.