General Mills is back with another out-of-this world offer -- marshmallow only Lucky Charms!

The Minnesota-based food manufacturer has announced that they're giving away 15,000 boxes of Unicorn and Rainbow marshmallow-only cereal, up from 10,000 boxes in 2017 and just 10 boxes in 2015.

To qualify, you'll have to buy a box of normal Lucky Charms, look for a code in the box, and enter it online at marshmallowonly.com to see if you won!

If you do win, though, you may not want to eat the box; someone managed to sell their box over eBay for $600!