My Design Paintable Rain BootsEven puddle jumping won’t smudge the waterproof paints. When it’s time to redesign, wipe the boots clean with the included eraser and decorate again.To buy: $30, samflaxny.com for info.
Alex Paint Your Umbrella KitAn umbrella decorated with glitter paint? Très chic.To buy: $18, amazon.com.
Jacquard Original Tie Dye KitPrimary-color dyes are premeasured, which should cut down on the mess. Each kit can color up to 15 shirts.To buy: from $14, artsuppliesonline.com.
OuchiesHe can marvel at his artistry while staring at his skinned knee.To buy: $5 for 20 bandages and three markers, ouchiesonline.com.