I bought some a while ago. If you're a non-smoker you'll want to open the bag somewhere to let it ventilate for a while.
SOS, Help, Friday, Shut Up, Happy Place, peace sign, rock on hand sign, lightbulb, $, 5:00, thumbs up, "cofee", coffee mug, clover, etc.
I tried cleaning out the guts of it with a carpenters knife and needle nose pliers but it still doesn't fit on a Model M.