This is awesome! We actually just bought a box of these at the dollar store so I think we have our activity for tonight! I didn’t even think to use cardboard to make the rainbow nice and straight. I was trying to figure out how to do that lol.
Our son loves painting as well, he’s getting into coloring more but has always loved some painting!
Ohh nice! Did u do it yet? I would love to know if it worked for u :)
My son is exactly like yours, he loves painting (and coloring too).