if they had a toonie right when they were first made the centre may pop out.emeraldrafael said:Most likely. Unite States Coins tend to be as perfect of circles as you can manage, and then there's coins that look like octagons and ones that are squares. It wouldnt be noticiable, but it would bounce differently.Lunafox said:That makes me wonder, would different munies drop/bounce/spin/sparkleshiney differently?
EDIT: plus there's the material. I'm sure Canadian 2 dollar coins would bounce differently based on weight
http://www.talktocanada.com/wp-content/uploads/2010/07/toonie.jpg
they use to separate because of the cold. and I know one time my friend dropped a couple toonies and the centres popped out.