Ok this might seem wierd but if you want cash, go to Secondlife.com and start playing..its an mmorpg or whatever, and you use a simple in-game modeling, and scrypting systems to create basically anything you can imagine. You can sell items you make on Slexchange.com and sell the in-game money you make for real cash on paypal.
plus the game is great when stoned.
and no this isnt some advertisement i play second life and it supports my ebay addiction and sometimes transfer some money to my bank account and pick up a sack :jointsmile:

or you can sell things on ebay, buy wholesale lots and sell them individually.