Register.
Then search for Groupon and go there.
Then search for Loot Crate.
With both promotions combined, you will get December's Loot Crate, with an exclusive Batman #36 and an exclusive Batman Funko Pop Vinyl for $9.40, as opposed to the usual $19.37.
The deadline is today.
Good luck!
First sign up for eBates if you haven't already[...]