I attempted to purchase from the web store advertised right on the front web page for openSuse. I did not get very far before I realized that the site was about to take my debit card info without encryption. There are apparently two contacts: One is Spreadshirt, an outfit that creates and sells similar items over the web on their own store and the other is Michael Löffler, SUSE LINUX Products GmbH, Nürnberg, DE (Germany). I can't really tell who the actual authority is in this and there is no reason why this store should not use encryption. This is fundamental e-commerce from my perspective. I'm afraid to buy anything from there and they are the only outfit that I know to be allowed to sell stuff with your artwork, at least for folks in the US.