Visual pun
A visual pun is a pun involving an image or images (in addition to or instead of language), often based on a rebus.
Visual puns in which the image is at odds with the inscription are common in cartoons such as Lost Consonants or The Far Side as well as in Dutch gable stones. For instance the "Batenburg" stone from Prinsengracht, Amsterdam, shown here, puns on the words baten (to profit) and burg (castle) which together make up the name of a village near Nijmegen. European heraldry contains the technique of canting arms, which can be considered punning.
Examples
In The Muppet Movie, while Kermit and Fozzie are driving. Kermit looks at the map and says they need to turn at the fork in the road. At this point he lowers the map and we see a giant fork (the cutlery) in the middle of the road.
In Spaceballs, Dark Helmet tries to order his troops to comb the desert for his adversaries. The next scene depicts troopers with giant combs, literally combing the desert.
In Super Mario Bros. and Super Mario Bros.: The Lost Levels, when Mario picks up a "fire flower", he becomes fiery. "Fire flower" in Japanese is literally 火花 (hi-bana; fire-flower), meaning spark, hence he is picking up a "spark".
