I can only guess the world is full of mugs.

Nichols looked at him over the top of his mug.

He drained the rest of his mug and set it down on the table.

He stared at her over the rim of his mug.

He saw many copies of his own mug on sale.

Grant shot her a look over the rim of his mug.

I downed the last of my mug and looked around for a place to leave it.

And there has obviously been an absence of mugs in town.

Richard ran a finger around the rim of his mug.

The professor regarded me over the rim of his mug.