Fill your shaved ice machine with ice. (If you do not have one, some refrigerators might have a crushed or shaved ice setting. You could also add ice to a bag and crush it with a rolling pin or tenderizing hammer.)
Allow the machine to run until your cup or cone is full of shaved ice. (You may want to pack it in, as the syrups will begin to melt the ice when you pour them over the top.)