GF and I use a pineapple juice can with a slot cut in the top. Pennies go in a Solo cup, and they're rolled whenever we remember to, usually while watching a movie. All our bottle return money gets thrown in there, too. (10c deposit in Michigan, it can add up quick!)
Funny you mention that. Was thinking about giving Dad the job of rolling it all, and accurately counting it. Then make a deal on a trailer, take it all apart, mix it into one or more five gallon buckets, and say " Here ya are man." lol