Eff is for 'Phibbeous Fellows

A small collection of novelty frogs and a reptile! Playing the banjo! He's quite common and I think I've seen similar sculpts hinting at a set, sort of Marx / Disney knock-offs?

Magnetic novelties are a good standby to keep kids amused for a while and these frogs do spin, frantically, so some clever use of the positive and negative charge there?

The height of mechanical novelty sophistication in the 1970's? Yeah, a lump of bitumen! Now replaced by spring-loaded jumpers, or the types with time-sensitive lick-suckers, these guys rely on the spring sticking to a lump of tar long enough for you to get your hands out of the way!