Does make a bit of a mess
My kids really enjoyed using these, and I hope to get them more often as budget constraints allow. My daughter always found a way to get the stuff to stain around her lips and my 11 y/o son always left dribbles and stains all over the sink he'd 'forget' to clean up but other than that it did make them put in more of an effort to brush at least, and brush better than scrub a dub and dash. Its not too difficult to clean up and I think its worth it.
Rating: 5 stars