Diamond art painting kits are available through Diamond Art Club. You can follow Diamond Art on their Facebook page to get a sneak peek at new kits before they're released. Some of my kits sell out as soon as they're released, but you can check out what's available HERE
Hot Topic has new tees online and at participating stores.
Show off your wings! Double sided printed shirts are available through Amazon. Crew necks, v necks, tanks, hoodies, mens, womens, multiple color options. Click HERE for more info.
If you're interested, here's an interview with The Geek Post :)
Check out Pop Threads for shirts and tote bags. They offer various styles (including long or short sleeves, baby onsies too) with easy ordering on Amazon.