What Merch would you like me to focus on first? (Patreon)

I'd like to send monthly merch to higher tier patrons and, while I have a little bit done already (you've seen some of it!), I'd like to know what ya'll's favourite type is so I can focus on getting that made first?

While I do plan to make shirts in the future, it's not realistic right now due to having to get tons of sizes and I don't think enough folk are even on my Patreon to justify it!