The historically significant American Civil War era Remington .44 Army Percussion Cap & Ball Revolver (circa 1860's). From my sketchbook: HB & 9B graphite pencil on 14cm x 14cm paper.
In this scenario, Gattie Gator is being (possibly) coned or scammed into buying something from a smiling salesman. While her aquaphobic brother (hence the innertube) is about to be a snack for some furocious creatures. Will Gattie be save her bro in time? Or is he doomed to be a disasterous dinner special?