Brad,

Maybe you could invest in music production software from
http://www.dancingDots.com
and hardware equipment to produce your own music.  then you could sell it at
http://www.CDBaby.com

I was browsing for Audible Books, and came across a concept called Ten quick 
Steps.  For example, I got one on Ten quick steps to making Perfect Google 
Ad Sense.  That's something you might be able to master in a short period of 
time.  I also bought Ten Quick Steps to writing a Ten Quick Step Guide.  So 
you can take something you are an expert in, and create that guide to sell 
on Ten Quick Steps .com.

Another idea is that you could write short stories for an EZine and work on 
your autobiography.

Hth,

Sharon