Adult Munchkins are about as tall as a well-grown child. They generally wear round hats that rise to a point, and their clothes are always blue. The popular Munchkin style is knee-breeches with silk stockings, low shoes with jeweled buckles, shirts with frilled bosoms, and vests embroidered with silk. Blue is the favorite color of the Munchkins.
The Singer Midgets portrayed the Munchkins in MGM's The Wizard of Oz including the Mayor, the Coroner, the Lollypop Kid, the Lullaby Girl, and the Sleepy-Head, the Violin Man, and the Munchkin Soilder. Jerry Marren played the Lollypop Kid that welcomed Dorothy to Munchkinland.
In The Wiz, the munchkins are a played by a bunch of children and teenagers. They were turned into graffiti as a punishment for painting on Evamene's (the Wicked Witch of the East) playground wall. But after Dorothy flattened her with the giant z from the Oz sign, the curse was broken and they were free from their wall prison.