Yes, apparently, T-Shirt with Apache logo from Jinx Hackwear does really exist! I placed an order for one back in September (9/13/2003), and just 5 month later (2/18/2003), here it is!
Unfortunately, instead of black it is in blue. Well, at least now they note on the page what they have in stock and what not - so get one while they last. It's a pity that black was discontinued...