Bring Your Own Slurpee Cup Day 2025. Will host ‘bring your own cup day’ on saturday, april 29 at participating 7‑eleven®, speedway® and stripes® stores. Today marks the return of the ever popular — and bizarre — byo cup day.

On august 27, 7rewards® and speedy rewards® loyalty members are encouraged to grab their cookie jars, fish bowls or any other creative container and fill it up. Bring your own cup (aka byoc) day is making its triumphant return to 7‑eleven, inc.