Found a neat license plate

[custom1970]

Does anyone know anything about these plates? I know they were sold by the state of Florida back in the early 70's, i think it had something to do with trying to get people to were their seat belts.

Also, did any other states ever make any speciality plates?

I found this one a few years ago in Ga., forgot all about it until i re-found it the other day, going to put it on the front of my truck, thought it'd look pretty cool!