I couldnt be so cruel as to not have a single mug, in a cafe, with coffee available.
You have a nice drink of coffee, no milk (probably wise, given the time without power - any milk would be... interesting colours by now)
Edit: Yeah, nah, I didnt have any cups in the cafe - just cutlery. Smart of me no? Anyway you have a mug. It's useless due to the same reason I fail at Scattegories. I hadnt planned a use for it, but you can dream up something...
Me: Name things found in a cafe - Coke Machine, Chairs, Tables, Cutlery, Frozen Vegetables, Coffee Machine, Freezers with secret doors and pin codes
You: What about cups?
Me: F***
Anyways you could have used the Wok