OK, browsing through the other stuff from these folks, I have to assume that they are not given to ribald humor, but then again, looking at the placement of the vintage wallpaper shellacked to this light switch I have to wonder. Or maybe this is just an early concept sketch for the cowboy doll in Toy Story.

UPDATE: Looks like they got wise and re-photographed this, confirming that the humor here was in fact unintentional. If you want to know what cracked me up about this, picture this same switch-plate cover on a light switch...in the on position!