I have checked my blog statistics and the most popular post of all time, with almost 2.5 thousand views is about the brain hat.
I' like to add that the website belongs to Ellen Johnston McHenry, who is a home-school curriculum author. Among others, she published The Brain: An introduction to neurology for ages 8-14 - a very nice, comprehensive book that starts from zero and ends somewhere at the early undergraduate level while explaining everything gently. I've bought it and had a quick look and so far it looks excellent.
Worth having a look if you have a kiddie that is interested in what you do (here)!