Classic Disney short films

I used to watch a lot of these on VHS and television when I was a kid. Especially the ones made in the 1930s and 1940s. In this thread, feel free to post mini-reviews of various shorts (most should be on Youtube and take less than 10 minutes per film). Looking at the list, I realize that there was an enormous amount of shorts made of not only Mickey, Donald, Goofy & Pluto, but also other characters like in the Silly Symphonies ones.

While I outgrew watching cartoons after becoming a teenager, the nostalgia factor makes me tempted to revisit these episodes.

PS. the black-and-white episodes ceased in 1935, so if you prefer colour animation then that's a good place to start.

These used to be some of my favourites:

Mickey's Polo Team (1936)
Modern Inventions (1937)
Clock Cleaners (1937)
Boat Builders (1938)
Mickey's Trailer (1938)
Donald's Cousin Gus (1939)
The Autograph Hound (1939)
The Ugly Duckling (1939)
The Riveter (1940)
Pluto's Dream House (1940)
The Plastics Inventor (1944)
Donald's Dilemma (1947)
Mickey's Delayed Date (1947)
Drip Drippy Donald (1948)
Donald's Dream Voice (1948)
Lambert the Sheepish Lion (1952)
Two Chips and a Miss (1952)