What would you make your famine topic?

This year i’m considering doing the 40 hour famine for the 3rd year in a row. The previous 2 years I have just done the no food famine. What would you make your famine topic if you were wanting to be different? All I can come up with is 3 days without the internet (which would be a big deal for me) – I think this would be a well known topic though. Ideas appreciated.