Sagitta (the Arrow) is the 3rd smallest of the 88 named constellations.
The Coathanger asterism and the Dumbbell planetary nebula actually reside in the neighboring constellation of Vulpecula (the Fox). I did not draw the constellation lines of Vulpecula because it's silly and looks nothing at all like a fox. And I've seen a lot of foxes. If it did look like a fox, I would have renamed Sagitta as the Hypodermic Needle injecting the Fox with a tranquilizer. I really should have lived in Ancient Greece. But I don't think they had hypodermic needles back then.