A couple of characters disappear for a frame in the Warners cartoon We’re In The Money (1933).
The head and arm of a little girl doll vanishes when blowing a tuba.
And a pair of long underwear bapping its flap to the title song hides for a frame.
As this is a Harman-Ising cartoon, one of the toy men does the same slide-step dance as Bosko (twice).
Friz Freleng and Larry Martin get the animation credits. Friz’ status in the business is legendary. Martin isn’t as well known. He was a member of the Los Angeles Times Junior Cartoon Club in 1926 and ’27. A Mary J. Martin lived at the same address as given in a 1926 edition of the Times. Martin’s claim to fame was being the model for Dishonest John of the Beany and Cecil puppet show/cartoons. Beany’s creator, Bob Clampett, once explained how he worked under Martin when Harman and Ising worked for Leon Schlesinger, drew caricatures of Martin as an 1890s melodrama villain and labelled them Dirty Dalton. Clampett said Martin later came to work for him at Snowball in 1961 and when asked about model sheets for Dishonest John was told to look in the mirror. Martin moved with Harman and Ising to MGM, but was at the Schlesinger studio in 1937 (Variety reported Martin’s wife was seriously ill).
I haven’t been able to find any other information about him.