Fund raising for college

When working a part time job at college sometimes you still need a couple extra bucks for tuition or food. Put a jar out at your job and label it something innocent like "under privileged children's fund" and put a cute picture of a kid on it. Then take your money at the end of the day because you are under privileged.

Profit

Invent a corporate holiday.  Associate all sorts of silly gifts that are tied to the holiday. Copyright the name, then sue all the major corporations for copyright infringement when they use your holiday name.