fish 4 a wile. then hold your fish and do /sell hand. u get $50 PER FISH!!! do it with diamonds and u only get $15 per diamond. So fish r worth more than diamonds!
Indeed, Farming is also good with eff5 tools, If you manage to get an eff5 ubb3 silk1 axe, you can make ALOT of money with pumpkins
OR!!! Load a 100x100 wheat farm, farm mellon with an eff 5, silktouch, and then sell the wheat... I make 20k an hour.