Here’s an explosion effect from Paul Terry’s Sour Grapes (1950), starring Dingbat. A fox plants some dynamite and....
Yeah, that’s the end gag. The fox sitting there.
The scene’s undercut a bit by Phil Scheib’s approach to scoring. The explosion happens while his saxophones are still puffing away. Someone like Carl Stalling or Scott Bradley would have built to a climax and then let the animation take it from there. (To be fair, Scheib has a great version of “Man on the Flying Trapeze” in the next gag).
Mannie Davis’ direction credit was chopped from TV prints of the cartoon.