A Japanese Daruma doll in a kawaii cute style. They represent a symbol of perseverance and good luck and are often given as gifts. The blue colour means 'success in school and the development of the intellect'.
Where you can by online
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).