Jack the car up so it angles the engine back. Put a 12" or larger sub-woofer under your oil pan. Play some appropriate rap, preferably gangsta rap with explicit lyrics, at a very high volume.
The vibes should make the washer wanna chill in the oil pan, and probably smoke blunts. From there, you can fish it to the drain hole with a magnet.
Sometimes you gotta think outside the (speaker) box.
apimp