So, I just ordered some stickers to Berlin for JSFest and the Hack Day. While at it, I put the design in the Stickermule marketplace, so whoever wants to order new stickers at any point in the future (or today?), you can use this link:
There’s no mark-up, so it costs exactly the same as just ordering new stickers via the normal process. Except these don’t need uploading a file and waiting for the proof again.