Personally, I also love his take on the sawing a lady in half illusion*. I found a video online which is a 30 minute documentary style video of the history of the Ladder Levitation. You've got to watch it! One of the coolest things on the video is the miniature mock-up that Walter built before creating the large scale version. The miniature version works just like the large one and it too is amazing.
Ladies and Gentlemen, Please Enjoy The Incomparable Walter Zaney Blaney!
If you'd like to see the Sawing a Lady in a Half-Blaney Version, this wonderful effect is also captured on a video. This is the link The Sawing effect is about 7 minutes 20 seconds into the video. But watch the whole thing because Walter is great during the whole video!