I have a 2009 full sized Miele washer at the warehouse that is about to be converted into scrap, it seems that the spider and maybe bearing has failed.
Have you every watched the TV show "Tanked" on Animal Planet? Anything is possible!
I haven't been able to find out who made the Miele into an aquarium, but I found this CNN story (video) about an appliance store owner in NY who converted a WP Duet into an aquarium.