The wikimedia foundation makes comparatively little from selling shirts, so I've put together a new store for them on spreadshirt (which has higher quality plot prints, not just digital prints -- and which I am not in any way affiliated with, for the record) and come up with a few new designs and a fashion-y logo-ish thing. (I'm not a designer by trade, so I'm sure these could be improved on.)
The store is at https://www.spreadshirt.com/shop.php?sid=21410 -- let me know what you think (though for god's sake don't buy anything from it yet; nobody but the hosting/shirtmaking company will get any money).
Also, who else exactly should I contact about this?
Ben Yates Wikipedia blog - http://wikip.blogspot.com