RED - watermelon balls, strawberries, cherries
ORANGE - orange sections, cantaloupe balls, mango, or papaya
YELLOW - pineapple cubes or banana slices
GREEN - green grapes, honeydew melon balls, or kiwifruit pieces
BLUE - large whole blueberries
PURPLE - purple grapes or cubed plums
 . . . . . . and any others.

Adults or older children will first need to clean and cut fruit 
and place in separate bowls according to color. 
Then the kids can assemble their own rainbows on wooden skewers.
Rainbows can be served on skewers 
and then fruit may be put into bowls before eating 
if skewers near mouths are a concern.