Folks who were kids in the 80s: do you remember rub-down transfers? Sort of like stickers, but more work. They were illustrations printed on special paper: put them on top of another piece of paper, then rub it with a soft pencil and the image would transfer. There were all sorts of these available, from generics to popular licensed properties (Presto Magix had most of the popular stuff, like their awesome Star Wars series, which usually included a pre-printed action scene you could transfer to). And then they kind of vanished as the cultural tides washed up new fads.

TSR produced Dungeons & Dragons themed transfers under their own brand banner, in two sets of four. This is from the first series, which reproduces creatures from the Monster Manual. Copyright says 1981, which makes sense, though these were definitely available for a few years after.
These were some of my first exposure to D&D – I got these as a kid from a book fair at my elementary school, probably in 1984. In my memory, they were stickers, but that’s just proof that memory is a tricky thing.
I love how nothing is the right scale, by the way. That…gets noticeably worse as the series go on.
