Cookie Monster Train

[Squall Leonhart]

I never get rid of anything and have a question about a toy I found in the depths of my closet. It's cookie monster and he's in a engine of a train. It's diecast and says "Muppets" On the bottom, 1981. I was wondering if there were any more to this set, I vaugly remember having a Big Bird too.

 

[Kimp the Shrimp]

Lol

 

[Squall Leonhart]

Yeah it's funny that I still have it, but seriously, does anyone know anything about it? I'm a collector and would like to know about it.