Why not make you own, with a louver press?
Lefts and rights, suck or blow, innies or outies. Not my idea, it was Harry Bradley, in a magazine from the 1980s that I have no hope of finding; so I Photoshopped it.
Please don't do this to pizza pans, get a proper Moon disc. I got a set of 4 at a swap meet for $5.00.