Transfer one can of crushed pineapple with its syrup to a metal pan and freeze; this will be for kids.
Mix the other can with rum and freeze in a separate metal container.
When frozen solid, cut into large chunks in a food processor or chop up with a chef's knife. Transfer frozen pineapple chunks to wine goblets and garnish with sliced fruit or top with granola for crunch.
Recipe Courtesy of �Michelle Urvater