View Masters.... Was it Nurse _____ Barton Books? I had forgotten all of those others too!!!
That little machine that made the rubber insects? Came out about the same time as an easy bake oven....
Betsy Wetsy...
Chinese jumprope
Twister
Mouse Trap
Silly Putty
Silly Sand
Barrel of Monkeys
Magic 8 Ball
Wheel-O
Mystery Date
Incredible Edibles