If you want to advertise to the world that you're single and looking for love, then perhaps you can dangle a Solitaire Symbol® around your neck.

Solitaire Symbol® International claims their symbol is internationally recognized as an indication a person is single, available, unattached or is looking for a mate or friend. Wow, I guess I need to get out more!

The company has two other similar symbols, but where the "eyes" have the same sex, meaning the person is gay or lesbian, making the symbol multi-purposed.

When you purchase one of these romance indicators the company gives you a special identification number, along with some space on its website. This way you can set up an online profile of yourself, and hand your number out when you go to bars. "Check me out online, I'm number 1225823"....

But then again, if you're going to advertise, why not just cut to the chase?