From the traditional – to the weird – all cups are open for the filling during bring your own cup day at 7-Eleven.

On Friday,  Slurpee lovers can fill just about anything with the sweet beverage for $1.49.

But there are few rules: containers have to be no more than 26 cm, 10 inches, in diameter and must be water tight, clean and hygienic.

The bring your own cup event runs until 7 p.m. Friday.