I'm just not great at messy play. I love the idea of it, but seriously, if I could, I would convert the garden shed into a messy play room so that I can just shut the door behind us till next time. If I ever get over that, I think we'll try these. Or maybe in the summer, when we can sit out on the grass and have minimal mess. And a hose down afterwards.
These painted marshmallows do look like fun though. A great alternative to an afternoon of building with Lego!