Is that in the pipeline? Why so much friction to supporting the game?
edit: something in the $3 range would also be nice. think how common that number is for microtransactions on other platforms. by far the most common donation to twitch streamers is $3. it is easy to pull the trigger on that value. I see custom imagery at $2.50 but it's all the way at the bottom and requires some amount of labor and desire from the user to upload imagery.
other cosmetics suggestions: premium in-game emotes. custom speech balloon colors or other features in that regard. maybe something transient like a ticker of donation messages on the website landing page or client log-in screen (a-la streamers on-screen messages).