You could launch a contest in which some startups that would like to use the domain can offer you a small stake in exchange for the domain. You pick up the startup you like the most and lease the domain to them. Looks like a fair change that can return something in a long-term. If the startup doesn't work in, lets say, 1 year, you get your domain back.

Good catch. Make it a forum so people can post ideas on what to do with it? Or a bit more useful: you could remake kickstarter, recreate something like DIY project sites (http://www.instructables.com/id/Magnetic-Rubik-s-Dice-Cube/), make it a specific-category site for ideas (home improvements, meal recipes, wedding planning, etc), list it for sale and see how much you could get for it, forward it to http://en.wikipedia.org/wiki/Idea - or some things that are a little more unique: make it a project listing site, allowing people to upvote projects, services, and devices they'd most want (similar to kickstarter, but no money involved, allowing you to get a reasonable idea for how viable an idea is in a rather refined market [techies who actually would go and read it]).

Many thanks xvolter! I like the "ideas list" idea.

<shamelessplug> Post it on friendsdomains.com </shamelessplug>

This is like an entire site dedicated to this very question. Very cool.

Shop it. What's the worst that could happen?

Agree as long as the domain broker doesn't charge upfront fees.

you mean sell it?

Yes, he means list it to see what you can get. If you don't get anything reasonable, then don't sell it. However, most services do stiff you out of a huge percentage, I'd avoid selling it, it's a hassle.