Preventing Snowballing

I've been thinking, I feel everyone can agree that snowballing ruins games in some sort of way. Some champs snow ball easier, while some require more farm than other champs etc. etc. First blood already gets the snow ball tumbling in a solo kill. 400g and 50% exp is way too much especially in Top and Mid. One way i feel this could be fixed in general is by implementing a system that goes like this ( When a player dies, for 1min. or 2min. after he or she respawns they will not be worth experience or gold to the killer if they die within the buff timer. ) that would make it so the enemy can obviously still get ahead in farm and towers if someone is feeding but it wont necessarily allow them to snow ball insanely fast because they wont be getting as much gold or experience off the kills if they keep killing the same person over and over. - I feel that the debuff would only apply to the person who got the kill but his teammates can still kill that person and get the gold. Hope that makes sense. I feel it would make people go on tilt a lot less and it would overall make the game more balanced. What do you guys think? It will making camping less of a thing and promote junglers ganking other lanes instead of zeroing in on just one or so. (Dyrus would be proud.)