Diesel’s super-size steins have returned. (Photo: Marc Levy)

Your eyes, stomach and bladder are not deceiving you: Diesel’s large drinks have indeed gotten bigger.

The Davis Square coffee shop returned its steins to service this week after a trial run during the summer. Mostly the mugs are for sale these days; it turns out that, when handed out over the counter during the summer months, they wound up not getting handed back.

That is, people stole them.

But Diesel is trying again, trading more Thai iced tea or beverage of choice in exchange for, you know, not being robbed.