When i was on the Championship servers i really loved the chaotic generator. It can give you anything depending on the fragment you exchanged. So lets say you'll get like 10 red fragments or maybe one purple in addition when you buy Gold. This will not destroy the economy because you can really get anything there starting with BUS, wpn/armor enchants, shells and ending with unique wpns.
Ofc we need IceAge for that Maybe they can add it to Gold when IceAge starts to make it more attractive.
Just an Idea.