With gas prices soaring, some small public school districts need to make quick cash -- STAT. The solution? Selling ad space on school buses.

Advertising Age reports that some public schools are so strapped for cash, they've taken to selling space on the big yellow bus. But don't worry -- you won't see ads for cigarettes or alcohol. School districts in Cherry Creek, Colo., -- which made $54,000 last year from selling the space -- and Ypsilanti, Colo., say they won't sell space for anything harmful, including junk food. You will, however, see ads for cell phones and the U.S. Army.

What's next -- final exams sponsored by Coca-Cola?