One of my friends just buys lots and lots of gold. I think it depends on your goals and what you want to achieve. In your prior post about selling, you said you wanted to pursue something bigger. Taking that into consideration, you would want to keep away from real estate in today's market where it is flooded and then you have to remember that owning real estate also requires management of the assets/upkeep etc.
Since Africa is having a meltdown and the Iran just took some war ships through the Suez, I would say military companies would be a good investment right now. Also, I would look to companies that help Americans forget their troubles such as entertainment, food etc.
There is a really cool Vodka company in Alaska, Alaska Distillery, that might interest you. They have a cool product and want to expand internationally. They make Salmon Vodka which is a niche product. There are three partners and maybe you can buy one out.. (I don't have any ownership in this company) They have amazing sales that are strong and steady and they have a great leader running the company.
You don't have to buy stocks on the stock market, you can find a stable smaller company with good growth and invest money in it without too much risk and get a nice income in return.