I'm not sure to what kind of Vespino's you are referring...are those the Vespa mopeds like CIAO and BOXER?
That's it! The Vespino was a moped, just like Ciao or Boxer, but made by the spanish Motovespa, and didn't have the "Vespa" brand, "Vespino" was the brand. It was made for 32 years, so you can still find them in every single corner in every single town in Spain. At first I thought you had one of those, I was going to ask you where did you find it!!
Anyway, I really LOVE yellow 50Specials, so congratulations once again!
-I never heard about that Vespino-Vespone story, I'll try to find it!-