Jumping rewards

Birthday
A few chocolates or toffees are hung on a string (or a clothesline) and the children are then asked to jump and catch the chocolates or toffees with their mouths and collect in their respective baskets/bowls in a given time limit. Whoever collects the maximum chocolates or toffees, wins.

Two elders could hold each end of the string and manipulate it according to the jumping skills of the children.