The members of the Nijmegen University Orchestra needed to fund their upcoming tour to Hungary. So what did they do? Simple - they created an free online flash game to both publicize and raise money for it (via ads).
Use the L/R arrow keys to make the bus go forwards and backwards, the up arrow to jump, and the down arrow to brake. The space bar drops the instruments onto the bus and the mouse can pick up the instruments you might have dropped along the way. Hint: put the tubas at the bottom of a pile of instruments, as they tend to drop off the bus rather easily.