Novelty Bloom County record
This flat square of plastic doesn't sound so bad!
It came in the Bloom County comic collection shown in the picture (Billy and the Boingers), and contains two tracks performed by a fictional in-universe band.
It's probably not technically vinyl.
I shared it over in the Bloom County community and got a bunch of interesting and informative replies: https://lemmy.ca/post/10930732
Not a Böingers song but “Scuzzbucket from Nantucket” was pretty bitchen.