[Mumble-bee]

Googling for Knuckleheads and Dracco Heads led me to a thing called "Grolls and Gorks" which has character designs matching two of these things, but in different colors (the orange one in top row, the red toothy one in the bottom row). Didn't find any toy photos. Maybe that helps? I've never heard of any of these things before, but I want the Ghostbusters Slimer-looking Dracco head now ...