I developed a line of YYY's merch a while back with Cinder Block Inc. Unfortunately they're not available for purchase on tour or in retail but the Heads Will Roll design can be made to fit your band's name. Just holler at the guys over at Cinder Block (link to the right) if you're into it.
If you're into something like this and want to commission Tall Cat Studios to a do a new custom design though we churn this sort of thing out all the time. Just shoot us an email for a quote!