Hello! I saw this mod and it's called the MCCapes mod. @daelwolf told me that I can post this but if this not allowed, delete this thread. So this is a mods that allows you to make custom capes on http://www.mccapes.com/ so you can wear a cape on Minecraft. This does require a download, however and you may use it with forge or without forge. So my cape is very simple since I just got the mod, and here it is. This is not a server, so don't count this as advertising, but it looks cool. Other people can see your cape if you have the mod, so yah. It's a nice mod. It's for 1.7.2 and works on Multiplayer and Singleplayer.
I have a Huzuni cape. Correct me if i'm wrong, but I think it can only be seen by those using Huzuni hack.
Actually it's to hal, and it's only visible to people using huzuni. I get the adfly money, Hal gets the donations. It's a fair deal since he puts in quite a lot more work than I do into the client.