Wizards of the Coast T-shirt from GenCon 1999

Description

This is a Wizards of the Coast T-shirt from GenCon - almost certainly 1999 given what's on the back (it can't be later since that was the last one I attended). It was a giveaway of some kind.
The front of the shirt has illustrations and both Wizards of the Coast and TSR logos. The back says "Bold Explorers Get More Booty" (don't complain to me, I didn't write it) and a list of some locations featured in WotC/TSR products. Note the list ends with "Arrakis" which must be because WotC was supposed to do a new edition of Dune: Chronicles of the Imperium, which of course never happened.
The shirt is an Anvil extra-large, made from pre-shrunk cotton.
I washed the shirt but I don't think I ever wore it. It was in a drawer for years.