what do you call those vibrators restaurants give you while you wait?

Answer 1

Those are called Glow Coasters.The newest type act as a pager.When they take your name they also write down the number on the back.When your name comes up,they key your number into the paging system.This activates your pager.Most of the new ones light up and vibrate.If you look close it indented so you could set your glass on it(glow coaster).At night it lights up your drink for a cool visual effect.They vibrate because some people hold them and don't notice the blinking lights.The ones I have used are made by J Teck.

Answer 2

I suppose they could have different names, but our restaurant calls them "pagers."

Answer 3

i think they may be beepers.