A pun on chromatic aberration - featuring a kawaii cute crow: crow-matic aberration! Different colours of light have different wavelengths, chromatic aberration is the effect you see due to the refraction of light through a glass lens showing an offset in colours (not meeting together at the focal point) due to the different wavelengths. Red (long wavelength) and blue (short wavelength) are particularly noticeable.
Where to buy online
Direct from us here - see products featuring this design.
Elsewhere online
RedBubble (US)
Threadless (US)
TeePublic (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).