I have a theory that the reason you can find sherberts/desserts easily is that no one used them!  They are so small that you can’t fit a decent amount of dessert into them.  This little stem is pretty with a dainty, unknown, pattern.  Needs identifying!  I wish I could remember where I got this.  I don’t know why I like remembering.  Part of the fun I guess of acquiring.  Looking at this photo…..I realize that I have to do a better job of dusting my glasses BEFORE photographing them!