Over the years we've gotten a number of interesting hats that act as back items, such as the fairy, dragon, and angel wings, and the barrel of butterbrew. One type of item in this vein that we haven't gotten yet that could be really cool is cloaks! Unlike the standard Minecraft capes, these wouldn't be just a straight flat rectangle, but would be shaped to look like a real flowing cloak around the wearer's shoulders. They could be made different colors and patterns (perhaps themed to the Hogsworth Houses as a start?), and could be animated like the wings to be constantly billowing no matter the breeze! I think this item has a lot of potential, and could see a lot of enjoyment from various people in the playerbase, myself included!