Tupperware toys were everywhere when I was a kid. At our house, at friends' houses, in doctors' waiting rooms. I was invited to a Tupperware party recently and noticed that they still have some of the same toys. Too bad our kids are too old for them.
Our kids' dentist had a vintage set of these animal toys in his waiting room.
We had Pop-a-lot toys like this pair, but ours had a sort of snap-action instead of a squishy bulb.