I think it would be fun to have an event like the Holi color festival in India, where it would be less about killing stuff and more about throwing color everywhere! Seeing Red: players can 'paint' the mobs. No special gun necessary; players attack mobs as usual and it makes them turn different colors, either as a splatter effect or an infusion effect. Set it up so players pick a dye they already own to dye mobs with (maybe the first dye channel on one of their armor pieces), or maybe have each of the weapon skills (1 – 5) universally dye things a specific color – ie, using 1 would dye mobs red, 2 would dye them blue, 3 green, etc. During the event, dye drops would be more common, including a super low chance at getting exclusive colors. Paintball!: You could do something like Seeing Red in PvP and WvW as well Paint the town: Give people a way to shoot color all over town and each other! It would possibly include mini-games, or may be just a silly way to pass the time in cities. One mini-game could be a race to see who can fill up a specific area with color the fastest, another might be similar to the shooting gallery activity, where players would race around town shooting specific targets in out of the way places. Color Run: Reinvigorate existing mount races or add a new one for the event! Taking part in a race during the event adds a phosphorescent glow effect to your mount similar to the glow on the Mordrem wolves in the labyrinth under the Silverwastes. The color chosen would correspond to the first dye channel of the mount. Is it only cosmetic? Probably, but you get a super rare shot at getting a color infusion for completing the race. A Glow Run would also be fun. Either a race through a cave with mounts that glow during the race, or adapt existing races so that at night the mounts glow.