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All you need to do is fill balloons with water and food colouring, and pop them in the freezer. Peel the balloon off when the water has frozen, et voila… ice marbles. Make them any size you fancy for outdoor fun on sunny days – on the lawn, in the paddling pool – and yes, they make great winter party decorations, too.
During Winter fill balloons with water and add food coloring. Once frozen, cut the balloons off and they look like giant marbles or Christmas decorations. Haven't figured out what one does when they begin to melt and all that food coloring is all over the yard.