Now that the last space shuttle has landed back on Earth, a new generation of space entrepreneurs would like to whip up excitement about the prospect of returning to the Moon.

Spurred by a $30 million purse put up by Google, 29 teams have signed up for a competition to become the first private venture to land on the Moon. Most of them are unlikely to overcome the financial and technical challenges to meet the contest deadline of December 2015, but several teams think they have a good shot to win — and to take an early lead in a race to take commercial advantage of our celestial neighbor.

At the very least, a flotilla of unmanned spacecraft could be headed Moonward within the next few years, with goals that range from lofty to goofy.

One Silicon Valley venture, Moon Express, is positioning itself as a future FedEx for Moon deliveries: if you have something to send there, the company would like to take it. Moon Express was having a party on Thursday night to show off the flight capabilities of its lunar lander, based on technology it licensed from NASA, and “to begin the next era of the private commercial race to the Moon,” as the invitation put it.