The colored whips are from the changes to Barbarian assult, with 50 points in any possition in the game, you change your whip color from red to either, green, white, blue or yellow. Personally, I think the colored whips look rather silly, and I personally will never change the color of my whip. I also dislike barbarian assult, so any other changes really aren't that appealing to me. I can see why people would want it so badly though, it's something new, and a colored whip could look great with some outfits out there.