From their European shop. Marked down right now from €14.90 to €7.90, excluding shipping. But getting a copy even all the way out to Cali, it still only came out to €12.54 total. Which is pretty great.

Limited to 1 per, it looks like.

https://eu.kingsroadmerch.com/shop/product/17765/kooky-spooky-signe...