Over the weekend, Slurpee, the iconic frozen drink sold at 7-Eleven stores, turned 50. 

To celebrate Slurpee’s 50th birthday, 7-Eleven let fans bring their own cup to fill with the frozen beverage for $1.50.

RELATED: Fill up your own Slurpee cup for $1.50 to celebrate drink’s 50th birthday

Check out some of the Slurpee cup-like-containers brought into the retailer during 7-Eleven’s event over the weekend.  

Be prepared to catch a brain freeze just from looking at these pictures.