Some of you will know about some lost Mickey animation created for a 1930 short shown at the the Mickey Mouse Clubs (like Minnie's YooHoo). A lot of animation auctions have sold animation drawings featuring Mickey holding a megaphone which David Gerstein has speculated may be from this lost film.
I've found enough of the drawings across the web to put together a little gif which gives some idea of the scene as animated. Of course there are a lot more drawings missing than present, but we get some idea of the scene. It seems Mickey waves to his audience, talks to them through the megaphone and then uses it to listen to their response. Perhaps he even uses the megaphone as a trumpet at some point (It's the sort of thing he'd do!) and finally waves goodbye at the end of the scene.
I've posted link below, I hope it works (I couldn't work out how to post a gif directly in a forum post).
https://ibb.co/gDdTH1L If anyone can help me find more animation drawings from this scene, please share and I'll update it. I've found as many as I can, but maybe someone has a link to a site or catalogue I haven't seen. Since these are from an unknown film the. drawings are often identified as being from another Mickey short.