This was so much fun, my kids asked me to do this over and over. Luckily, I have a stash of plastic bottle waiting to be put to use! To do these, simply pour the paint into the bottle (any size will work), put the lid on and shake it, shake it!! So great for discovering which colors make other colors, fine motor, sensory, and all that shaking gets rid of some of that incredible energy! This is a great (mess free) painting experience for your babies and toddlers too. Yippee!