Forgotten and Favorite Muppet Monsters

[Skekayuk]

I gotta nominate Big Mama from TMS - she also popped up briefly in Faffner Hall.
She had a certain outrageous quality to her (if her infamous RVP story is anything to go by).

 

[Kiki]

I like Zoe, Rosita, telly, all the freakles and Beautiful day monster.
Mind you, they're all groovy.