Tiny glasses with tails and feet

I apologise for the upside-down-ness of this photo. It isn't upside down in the original...

We have had these glasses for over 20 years and were about to throw them out as we're moving. But I wonder if I should keep them and what they are.

About 2.5 to 3 inches or less in height, clear glass, with tiny stands, or feet, and a curling tail, what were they once used for? I always called them syllabub glasses, but on looking that up I find they are not. Help anyone?!