Actually, you might be suprised just how well the mylar
flips hold on to the coins. I've
had no trouble with my pieces moving around- including the very small ones (a tetartemorion even!).
However, I just switched to coin drawers so that the coins are more exposed and I can grab them. I love to hold them for some reason...just love it. Only bad
part is the attributions are not with the coins- which means I have to memorize a whole heck of a lot to impress any viewers!
Molinari