Here's a few things people without talents can do:

1. Rob something: bank, exchange office, supermarket...whatever turns you on
2. Collect empty bottles from garbage: in my country, you need 14 bottles to get enough money to buy a bread, pretty sweet deal for a dumpster diver.
3. Kidnap someone/something (Somali pirates anyone?) and ask for ransom.
4. Sell drugs
5. Coach pokar for 19.99$ per hour - doh like fish will know you teach them wrong
6. Go to forest and eat fruits and squirrels
7. Start a really sensitive indie-emo-pop-rock band. You don't need any musical talents for that, and for some reason kids like that crap.
8. Sell tapped bottled water on ebay claiming it makes your penis bigger and harder. If you want regular customers crush some viagra and mix it in.