I tried Cafepress but they don't print spaghetti t-shirts and camisoles in black. Only in white. Bummer!
I tried Spreadshirt but somehow, they always reject my logo because they say the quality wouldn't be good. Bummer again!
The logo that I have is in PNG format and you may have a look here:
http://www.exquisiteangelz.com/logo.png.
So, any recommendations?