I wouldn't have much to say in terms of merchandising, there's no shows in the US anyway. But I'm sure some nice AMIT members would assist me in securing some next year.
I agreed on a tour T-shirt with Mark and one of his magnificient guitars preferably a red strat for me with tour dates in the back in different colors. white, black red, grey, blue, yellow etc. I love wearing T-shirts with both Mark's name and picture on it. It's sooo cool. Keychain like the one during GL tour is nice. It has to be better design though, because the one I got during GL broke already after only a few months. Good thing I bought two of them.
And of course a LIVE DVD for fans who couldn't attend the shows. Unfortunately there will be plenty of them next year.