My latest project wasn't actually my project. My 11 year old brother in law pestered me for a while to help him make a cape. I finally relented and his mom and I picked out an old black shirt and an old green pillowcase to upcycle. We cut off the sleeves and front, sewed on the green lining from the pillowcase, finished the edges, and added velcro.
He loves it because with the collar down he is a good guy, and with the collar up, he is a bad guy. Imagination nation. Although, I think it will be a while before I start my next project with a young person. My patience is only so thick.