Disney's Adventures of the Gummi Bears (1985)

S1E4 Someday My Prints Will Come

During an adventure in the Great Gummis' old storeroom, Tummi stumbles upon a mechanical decoy designed to create dragon footprints. In his excitement, he accidentally activates the machine, causing it to bounce wildly across the landscape. This commotion draws the attention of a genuine dragon, who turns out to defy the typical image of fearsome, giant dragons. Meanwhile, the knights of Dunwyn spot the machine, mistaking it for an actual dragon as well.