I am very happy you find this forum useful.
I guess one day we will have the T-shirts. Trompillo or Trevor, for example, could make fabulous designs. It may be part of raising funds for a future project. But to tell you the truth, sometimes I feel guilty of encouraging people to expend all their disposable (but hard earned) income on spintop things 
(I am a collector, so I am doomed.) I remember when I started how cheap a hobby it was: a $8 Monarch or Sidewinder was all you needed to be a player (you could buy both if you wanted to splurge). How things have changed!
I have a friend with a screen printer. We could make some shirts and then ship them with all of the Mercurio orders. If someone has a design, I am sure my buddy would give us a great deal. Let me know.
