http://wiki.guildwars2.com/wiki/Mystic_Chest was an item that was around for the first month craftable to get rid of the low tier of materials. I think it should be brought back, but instead of using the old recipe, which would defeat the purpose of its removal, it should instead be added to the Gem Store. All the resources are currently in the game and it wouldn’t take much effort but it would be nice to still be able to obtain these.