Before GW2 got boring i had a blast finding any kind of special utility consumables that could help
you in your quest/battle. Things like a teleportation gun for making jumping puzzles easier,
invisibility potion in PvE for when getting unvanted aggro (lasted for around 10 seconds if you stood still)
or maybe a rock you could throw to knock down a mini-boss. What are your thoughts about having
consumables like this implemented in the game, some for PvE and some for PvP? Personally i
would like to see a wider range of different types of consumables and i belive this would add a hint
of spice to any type of game in this genre.

http://www.uesp.net/wiki/Morrowind:Scroll_of_Icarian_Flight#Scroll_of_Icarian_Flight, that would be fun.