This will be our first time doing pressed pennies and the girls are so excited about it! For those w/ experience, how many mini M&M tubes do I need to have filled w/ quarters and pennies? I'm guessing that each dd will want to make them at each machine we find (and probably my ds, too but I can easily fool him since he really won't know the difference... unless I should save them for him later - thoughts on this???) so I'll need to be prepared for at least 2 (maybe 3) sets at each stop..... Any estimates as to how many quarters/pennies we might go through in 5 full days at the parks??? Thanks in advance for any help!