In your ice tray give every section 1-3 drops of your squash or juice. Then fill the rest, to just before the top of the section with water (ice cold is best). Put in freezer for 2-4 hrs or 1 1/2 on super freeze - that is if you're in a hurry they can be left in freezer for up to 4 weeks. Now pop them out and after a while your drink may change colour!!!! WOW!!!
They look fab in water for kids and white wine for adults!!!