The Flying Mouse is a small mouse in the 1934 Silly Symphony animated short The Flying Mouse. He also makes a cameo appearance in Mickey's Polo Team.
The Flying Mouse
In the short, he is a mouse who dreams of having wings and flying with the birds, but finds out that his wish has more consequences than he imagined.
Mickey's Polo Team
The Mouse is seen (without wings) alongside his mother and other Silly Symphonies characters.