MUTTtoys Artist Series Coaster Sets

I knew Tyler from MUTTtoy had something interesting up his sleeve but I did not know what he was working on... till I stumbled across this post from Brent Nolasco's blog:

Tyler says the artists involved are Brent Nolasco (obviously), MAD, Project Detonate & Matthew Ryan Sharp. There may be more, I don't know. I am cobbling together info from different sources, including this SpankyStokes post.