Produce cool summer apparel with stamps made from favorite fruits and vegetables.
Slice the fruits and vegetables in half and place them cut side down on paper towels. Just about any fresh produce will do, although juicy ones, like oranges or even onions, should be allowed to dry for 15 minutes or so. Meanwhile, wrap the plastic bag around the cardboard and slip it inside the shirt.

Pour some fabric paint onto the plastic plates and practice making prints by dipping the cut surface of a fruit or vegetable into the paint and then pressing it onto newspaper. When ready, print directly on the shirt.
Once the paint dries, remove the cardboard. Then heat-set the design and launder the shirt according to the paint manufacturer's directions.