Thank you for the question @LTF. Currently Merch by Amazon only supports t-shirts, long sleeve shirts, sweatshirts and hoodies. We don't have any specific information to share right now on additional products such as hats or mugs, but we will be sure to update our community of content creators through the Merch by Amazon dashboard and here on the forums with any information related to new products.
Newbie stuff. 5 Answers
Cropped Hoodies and Shirts 1 Answer