Although I'd find it hard to believe that Steve Purcell's cover art for the Telltale collector's disc of Sam & Max: Season 2 left anyone unsatisfied, Purcell seems to make a habit of sketching multiple concepts for his covers, and today he shares the alternate idea in his latest blog post, depicting Sam and Max munching away in Stinky's Diner, presumably on duty.
Purcell even suggests that he may go ahead and realize the concept and make it available in print form. Such a development would, of course, be awesome.
Source: Spudvision
Here's hoping it turns into a print!