Just like how we have a minion guide and a mount guide, why not add a glamour guide? You can add any projectable item to the list, but you give up the item. To make things even easier on the server, the item could revert to its unaltered, undyed form. The game already lets you dye a glamoured piece without it affecting the original item it's imitating. And you should still require prisms to glamour an item.