What: These stubby little dudes seemed to pop up everywhere back in the '80s/early-'90s heyday of little rubber guys. They're made of hard rubber and have painted details. They look a bit cheap, like something you'd get at the dollar store (and maybe you could, I can't remember), but that's part of their charm. I'm sure there are additional sculpts/variations beyond the ones I have.
When: The figures are marked 1986.
Where: U.S. (at least). I can't remember where I actually got these as a kid, but I'm guessing they were available at toy stores as well as variety stores and the like
Who: Produced by SOMA. I'm not sure if they're still around, but a search brought up this company. Possibly the same?