I am trying to remember a label printer my friend used to have back in the mid 90's. It looked like something in the picture:
I think it was casio, You would type what you want on the monochrome screen and hit print and it will print it on a shiny label that used to be gold, pink and green I think. then you peal it and it becomes like a sticker you can stick any where..
If you want to change the label color, you had to open the device and insert the color tape you want which looked like your regular scotch tape.
Does it ring a bell with any one?