"Clacker" or "Kabonkers"or Click Clacks! Lightly bounce the string to get them clacking together, then lay on the power hard swing up over your hand and clack there as well. How many times in a row was the goal. No way they'd create this for kids today.
a close up of the xmas santa pin I had on my coat as a kid. Pull the string with the bell on it and santa's nose lights up. I was always scared if anyone pulled the bell it would tear a hole in my coat.