Sure, I've thought idly about making an animated short (I'm an animator as my day job, so small animations are very possible), or even a sequel comic sometime in the distant future. I'm also decently handcrafty, but like @NickRowler above, I'm not thrilled about adding to the mass of... idk... nerd flotsam in the world already. I like small and/or useful things, so maybe merch could be postcards, stationery, little charms, mugs?
All my ideas are small because my audience is very small, and tbh I'd prefer this project to stay my own little creative thing where I get to play, avoiding having too many cooks etc. even if the audience grows. I have other ideas that could work as collaborations, but this one's all mine!