I'd like to see a color skin.. is that what they call it? Color skin? color option? Well I think you know what I mean.. I'd like to see a color option that looks like A Link to the Past Link. Like, it'd still be Toon Link.. but he'd have the purple hat, the red mail with green sleeves, maybe the pink hair, and the mirror shield? I don't know, it'd be a nice reference to that great game in my opinion. Since OoT was the first Link in the entire series in 64, and he was changed into Twilight Princess style.. He even has a White Tunic now to kind of reference the first game.. So Toon Link having the Red Mail from LttP would be a real treat for me to see.
Oh and I also think the soup idea is good. :3
EDIT: So I've been going crazy with texture hacks and modding Brawl/Project M with a bunch of different stuff, and among the many things I found, I actually found a neat LttP pack containing skins with all three mails from that game for Toon Link. They look fantastic. The only problem I have is with the Mirror Shield.. it doesn't look very mirror-y. But its a minor flaw and I still REALLY enjoy those skins.