My friend and I recently made an entry for a contest on deviantart, found here:
http://nucklez.deviantart.com/art/Cosplay-contest-entry-thingy-86925277
As you will see in the description, I made a whole scenario when I was bored. Well, y'see, I'm thinking about turning that into either a mini fan fiction or a comic.
I also have an idea for a bit of a subplot involving the 3 regis being part of the mafia, and regigigas is the don.
other than that, I got nothing, so I'd really appreciate some ideas and suggestions.