Gonzo horn

[FUZZYRED]

The Muppet Show Theme was my favourite theme song. My favourite part was gonzo blow his horn. I been wonder how did it work the stuff come out his horn? Such as flame, smoke ,spray water or spark. Does anybody know how did it work?

 

[BoomerangFish]

I'm sure there was a tube running up through the instrument that would emit the gas, or whatever the gag was. Similar "technology" is used with the old biddies (Maggie and Judy) from Little Britain barf all over everything.