Basically a Lesser Reincarnation +0 heart, except all you can change is the appearance tab.
Lesser: Change your appearance.
Greater: Change your appearance + gender change.
Price these as an impulse buy (50TP - 100TP), and I'm sure you'll sell a lot of them.
Make them unbound, and I'm sure some people will buy them for their guildies, just so they can screenshot "clone" runs of quests & raids.