Here's a sampling of the suggestions we've received so far:
Let's buy oil! Everyone loves to blame the rising oil prices on speculators, but HOW does one actually buy a barrel of oil?? Do you buy the barrel and keep it in your garage? -Philip Howard
SHORT OIL: I think you should invest in oil going down. -Brian
oil futures -@congeeboy
grain futures -@Hpblvd
whiskey futures -@REVWW
marijuana dispensaries or grow ops. Is there an ETF for that? -@chosken
How about a share of Facebook or Twitter on SecondMarket? 'Public' bubbles of private stocks... -Tim Wilkinson
How about some bitcoins? Or maybe invest in a bitcoin mining rig? -Casey Deen
How about investing in micro loans next? (Kiva for example) You might not make a lot of money, but you will likely loose it more slowly ;) ...and it pays dividends in personal satisfaction knowing a little means a lot to others. -Reinoud Vaandrager
Next Investment: The Planet Money Investment Fund shorts _______. Walk us through the weird wild world of shorting stocks/bonds, be it naked or covered. -Michael Klein
This might sound boring, but why not stick it in an index fund? If nothing else it'll be a good show on how to actually invest wisely. -Harry Traulsen
Invest in poker lessons next. Seriously. -@RadioNed
US Treasury Bill, nice safe investment, that the US may soon cease to pay interest on. -@JCS3
How about commodities futures? Perhaps coffee futures? It's addictive and the supply is threatened. -Dean in SF
Your "Toxie" was a bundle of mortgage loans, and I've heard of another type of packaged loans being traded - student loans. -Andy B.
I think you should try to use that money to invest in Detroit real estate. The market there is so depressed, I think you just might be able to buy something there for that money, and I think Detroit has a lot of really interesting economic stories. -Margaret
Keep 'em coming! Please add your suggestions in the comments.
Copyright 2011 National Public Radio. To see more, visit http://www.npr.org/.