Does anyone remember (agricultural) TVO?

Does anyone remember Gnip Gnop?

• Also I remember my dad had these 2 hard balls that hung on separate strings brought together at the top with a round plastic circle. We would set around as kids and try to make those balls hit together really fast. Also I remember my grandfather had a toy that was a bird and the bottom of it was round and had red liquid in it. I just remember that he would always have a glass of water by it and when he put the glass of water on the table the bird would bob forward and backward and the head would go into the glass then out of the glass. I don't remember what they were called, I just remember watching it and thinking this is stupid. Does anyone else remember these things?

• Answer:

  Yes I do I used to stare at that damn bird for hours.. LOL