Just go into your mastery pages and make a page that no champion would want to use, make it as bad as it can get with every champion in mind while using all 30 mastery points you have, don't make it bad for a specific champion, the entire roster should be considered, then post a screen shot of the mastery page, worst mastery page wins.
I don't think anybody would be willing to use this: http://gameinfo.na.leagueoflegends.com/en/game-info/summoners/masteries/#BNr03Ecm3.794ZH1JWW.2nY8gf00
Seriously though, I'm pretty sure there's going to be a champ that'd be willing to use any mastery page where you go all the way to a keystone in one tree, and put the remaining 12 into another. Now, if you meant create a page that is not the ideal one for any champion, you might be able to come up with something...
How about Full AD Jungle Nasus [slayer-pantheon-thumbs]
