Slice apples, soak in cold water for minutes, then soak in a lemon-lime carbonated soda (such as or sprite) for minutes. Divide into snack size portions and store in Ziploc bags in the fridge. The lemon-lime soda will keep the apples from browning.
Transform an old boring sandwiches in a fun kabob! Skewering your sandwich ingredients is fast, fun, and for kids who normally don't eat tomatoes on their sandwiches, they just might when it's on a stick!