Listeners Are Requesting Merch

Several of our listeners are requesting merch. I want to start with mostly stickers and maybe one or two shirt options (I feel like wearing a shirt is a commitment lol) What websites would you all recommend for being able to upload designs that can be made into several things and is easy to manage? I personally shop Teepublic and Redbubble often but wasn’t sure that was a great place for podcasts and was curious what other have used and liked.