Cape Upgrade . A upgrade once purchased, you should have access to an official "Guild Craft" cape as they defult style. Customizable at anytime, grants nothing but a cape that all users can see with/without the help of optifine. Lasts forever Cheap Looks good.
A custom cape would be hard to do since a plugin wouldn't exist.. I think. Plus kinda not advisable since it's a cracked server.
