No I don't think so, I definitely didn't see any in Canada. It would be a good idea, but I think his merchandise is his own personal thing.
Also Guns N' Roses obviously have a deal with the T shirts manufactures of their own tour shirts. So if DJ wanted to display his shirts at GN'R shows he may have to let Bravado or Fruit Of the Loom licence them just like the Buckethead and Robin Finck shirts back in 2002
It would be nice though to have individual band member shirts.
Lee