Ted Lewis is caricatured here and in the slightly later Looney Tune, Bosko in Person; in each of these shorts, the main character imitates Lewis's signature phrase, "Is everybody happy?"
Besides the mannequin imitating Louis Chevalier and Ted Louis, the dancing coat racks are meant to evoke Joe Frisco, who did a similar high-step strut with a tilted derby, cane, and a cigar in his mouth.
The Forty Fifth Looney Tunes Cartoon To Be Released
Vitaphone production reel #5492.
The barking dog in the applauding junkyard audience is a depiction of Nipper, the famous trademark of RCA (USA) and HMV (UK) records.