Way ahead of you on the idea Gringos But this is why I am doing work on a new logo.
Right Breast
STAR Stealth*Tactics*Assault*Recon
Right Sleeve
AA skull with the Canadian and USA Flag background
Accross the Back Shoulders
The new and yet to be finalized pheonix logo.
Now the shirts themselves .. the rage these days is MMA
They have alot of nice shirts for this sport rather than a plain T, start with perhaps an urban cammo print. 
I know the guy that started and owns this business Jakt Apparrel have a look at what they put out
I'm thinking that once there is enough interest I could inquire to this guy as to whom to talk to to get some shirts made .. as he is in the business
Have a look at some of his stuff
http://www.jaktapparel.com
Kenny has been thinking of this for a long time but if there is not enough interest well why bother making an investment if you cannot sell product ?
I cannot afford to loose $$ 
Also Kenny's mother in law has a sewing machine that does embroidery .. make a logo digitize it embroder it.
Again I don't know .. consider cost of materials time invested and well she won't want to do to many 
it's just a hobby for her.
