friday all the other classrooms want to make it now.. Thanks for the idea I'm going to experiment with adding some food colouring to the mixed dough to see what happens. Apparently you can't mix food colouring with baby oil (think oil and water), so I don't think it can be done before you add the oil. Thanks for dropping by! Tried this today. Goblin absolutely loved it and played for ages, but I can confirm that paste food colouring doesn't work either. It just goes clumpy. I loved playing with it too, it feels so nice -- must be great for your hands -- especially as the only oil we had in the house was olive oil! Aha, speckled! I guess that's because oil and food colouring don't mix (similar to oil and water). I'm just figuring this all out today, after hearing about someone else's experimentation with colour. Thanks for letting me know, Katherine! I've not done this to cloud dough consistency so much but I have added more oil so it's more gooey. It would form to the container. We didn't cover it so after a while it was more like playdough consistency I think. It was a great sensory/discovery activity. The kids helped mix it with their hands and both the kids and adults really liked it. It smelled good and was good for our hands too. Jackie- as a mom who made 3 underbed bins containing 170 lbs of cloud dough for a birthday party,