7-Eleven Bring Your Own Cup Day Returns March 20

7-Eleven will be bringing back their Bring Your Own Cup Day for the second year in a row!

On Friday, March 20, 2015 from 11:00am – 7:00pm, bring your own container to any 7-Eleven in Canada and you can fill it up with Slurpee for only $1.49!

Weird and wonderful containers are encouraged! Last year, we saw teapots, slow cookers, fish bowls, plant pots and more! To view some of the wacky containers last year, click here.

“We believe Slurpee lovers can get even more creative this year,” says Raj Kapoor, Vice President and General Manager, 7-Eleven Canada. “A high bar was set last year but we know our customers can take the cup creativity up another level and have even more fun – we’ve seen time and time again how imaginative and individual Slurpee fans can be.”

Before you go searching for a 5 litre cup, here are a few rules:

  • Cups can be a maximum 26cm wide and 26cm high when full. It must also fit in a measuring device that will be available in-store.
  • The cup has to be water tight and leak proof (ie, you can’t use your hat as a cup)
  • One cup per person. No refills.
  • The cup must be food safe clean.
  • Staff has the right to restrict containers if they don’t deem them clean.

So exactly how much Slurpee can you get in a 26cm tall and 26cm diameter cup? To solve that question, we dug up our high-school math books visited Wikihow. To calculate the volume of a cylinder, all you have to do is find the height (h), and the radius (r), and plug it in to a simple formula: V = hπr2.

The volume of a 26cm cup is 13809.71 Cubic Centimeters. 1 Cubic Centimeter = 0.0338140227 Fluid Ounces.

So if you were to find a perfect 26x26cm cylinder/cup that satisfies all the rules above, you’ll have a 466.97oz Slurpee – or 13 litres!

If you can’t find a 13 litre cup, then a 4L milk jug works as well.

It’s warming up here in Winnipeg! Let’s all enjoy it with some Slurpee! [SLURPEE]