More recently he came up with some Faux-Knit Olympic Sweaters for Canada, USA, Finland and Sweden:
I slightly modified his Faux-Knit template (designed more for Photoshop and the like) so it could be used by the more low-tech MS Paint or Paint.net users. Just use the 'Paint Bucket' aka 'Fill with Colour' to colour in the blank spaces one by one.
Here's one for the back:
Made a Game of Thrones/Song of Ice and Fire concept with the template. The Stark hockey sweater concept is in a style similar to Dave's Olympic Faux-Knits. If it's not readily apparent, it's supposed to be a direwolf on the front with snowflakes on the shoulders:
If you want to see some other Game of Thrones jerseys concepts a great place is Dave's Geeky Hockey:
Some of concepts have been produced as actual jerseys by the Geeky Jerseys site https://www.geekyjerseys.com/index.php and are usually only available for a limited time and are gone after that (unless enough people show enough interest for a later re-issue).