I bought a yoshimura rs-5 the other day and it's not the newer model ones. Anyways I realized that the slip on didn't come with a holder I guess you would call it that goes around the actual can so it doesn't wobble. Anyways I was wondering if I could purchase one of these things or make one myself?

 

Make it yourself with some stock aluminum from Ace or True Value. All you'll need is a vice, hacksaw, and mallet. Add some rubber if you want to get really fancy.