PATSCAN’s Bizarre Patent Calendar for 2008 (pdf) is now available.
I like the entry for December (i.e. US 6,490,999) for a leash and collar combination to walk one’s snake. It even includes a feature for reducing the snake’s concertina movement through the collar
For more details on this particular invention, see the inventor’s website at www.snakewalker.com. There are even a few movies showing how the leash and collar work.