I need to make a gift certificate offering free coffee fill-up when someone brings in certificate and a certain mug. Any suggestions on wording??

anyone???

Lol, I think you just said it very well!! "Free coffee fill-up when you bring in this certificate and such&such mug"

How about - Get a free coffee, when you use your *bakery_chick mug, and accompanying gift certificate.

*or whatever the mug will be called.

Thanks for the replies.
Certificates went out with
"Free Cup of Coffee
As a thank you to you, bring in this specially designed coffee mug, and we will fill it with freshly brewed coffee on us. "

Wasn't crazy about it, but I had to have them finished this morning. Cylstrial, I am going to save your wording though, I like how that sounds better.

Hey Bakery_chick! I think yours sounds great! Sorry, I didn't realize that you had already taken care of it. =o)