There's this anime that I've watched but I was really young back then... I believe its a kiddie anime... I've been trying to search for it but I don't even know the title.
Its like One Piece wherein the characters are a pirate crew. The main character is a fat funny pirate (I believe he's blonde). They are searching for magic stones called "Peace Stones" (I remember it like that). When characters use these stones, they transform into different ones. The fat pirate becomes a handsome, hunky, serious man. A monkey becomes a beautiful girl (with brown hair) who uses a sword. And a manly black ninja turns into a white, sassy and gay(?) ninja who holds a microphone and acts like a wrestling emcee.
Those are all the things I remember... I hope you know... I want to watch it again when I have the time.. :)