A kawaii cute griffin, the fantasy mythological creature that combines the head, wings (and optionally front legs!) of an eagle with the body and tail of a lion. Can also be spelled griffon or gryphon.
Where you can buy online
TeePublic (US and UK)
RedBubble (US)
Threadless (US)
NeatoShop (US)
Design By Humans (US)
You can find the design on t-shirts in most stores, but also on other products depending on the store (e.g. hoodies, mugs, stickers, notebooks, phone cases, greeting cards, cushions, socks etc).