I usually have all green food day for our St. Patrick's Day party and all red food for Valentine's Day. I agree that if I'm going to use a few drops of food colouring in cream cheese or vanilla pudding to add to the menu, then I will only do that to one item per day. My son had ADHD when he was small, not so much as an adult, but he would go crazy bonkers when he had a lot of food with dyes so I've always been careful about that.