Canonical has produced mascot t-shirts for each release since Ubuntu 8.04 LTS ‘Hardy Heron’.
The latest design is a dark blueish¹ color and boasts a bright orange aardvark mascot in the centre. The reverse of the shirt reads “Artful Aardvark 17.10” in orange text.
A unisex fit, the shirt is made from 100% cotton (presumably, though the store doesn’t mention it) and is available in sizes small to XXL.
A potential xmas present for any Ubuntu fanatic in your life, and ideal for wearing at open-source conferences and events.
A single shirt costs £13.20 ($13.53/€15.44) excluding postage/shipping and packaging (which is never cheap from the Canonical Store).