7-Eleven Letting You Bring Your Own Slurpee Cup on April 11

7-Eleven is letting you bring your own cup, or anything remotely cup-like, and fill it up to the brim with Slurpee goodness on Saturday, April 11, 2015. They're calling the promotion "Bring-Your-Own-Cup Slurpee Day."

Regardless of the size of the "cup," you'll only be charged $1.49 (may vary), or the cost of a medium Slurpee, to fill it up.

Now before you go running out to buy a giant trash can or wash bucket to fill and dunk your head in, there is a limitation: Your "cup" has to fit upright through this in-store display with a 10-inch hole:

Apparently, a giant Solo cup, a kettle, and various hats are A-OK to use as a Slurpee "cup" during the promotion.

While the "Bring-Your-Own-Cup Slurpee Day" is new to us here in the U.S., the company has held the event in a number of countries abroad including Australia, Canada, the Philippines, and Malaysia.

Photo via 7-Eleven.