Wow you guys are good and fast. I remember some of the ones used for the Christmas light set.
I don't think any of them were done as simple and plain as this clear on clear plastic "Stockar".
I too went on a search and found more of them.
All plastic bodies in this case is kinda neat.

- Steve a.k.a. ThunderRoller
“…And the thunder rolls…And the thunder rolls…..�