If I only had a brain!

Yes I know the Tin Man wanted a heart but Ben has a heart of gold! He has a brain the size of a planet too - what a shame he doesn't always use it! Fancy getting signed up to be the Tin Man in the school assembly, Scribe 1 got to wear jeans and a t-shirt and Dorothy got to wear her school dress; I bet their costumes didn't involve gallons of silver paint and milk bottle lids!