Tim and I remember
Klackers. You'd start out hitting the balls together and it would go clack, clack; clack, clack; clack, clack; clack, clack then as you sped up, the balls would hit at the top and then you'd hear, click, clack, click, clack, click, clack, click, clack, click, clack, click, clack, click, clack, click, clack, click, clack, click, clack, click, clack, click, clack, click, clack, click, clack.
