Dishwashers contain rotors which spray their content with water. These rotors are on the inside of the dishwasher. Helicopters bear rotors which enable them to fly and steer. These rotors are on top of and at the back of the helicopter. Hovercraft bear rotors which enable them to float and steer. These rotors are underneath and at the back of the hovercraft.
Therefore, dishwashers, helicopters and hovercraft are all rather similar. They differ only in the power and configuration of their rotors. Make a helicopter out of rubber or other elastic material. Give it a kind of collar or skirt which can be folded up over the main rotor and turn it upside down and you have a hovercraft, provided you can also twist round the tail rotor so that it's on the back facing back so you can steer it. Turn the entire arrangement inside out so that the back rotor is facing inwards, give it a door and plumb it into a water system and you could have a dishwasher, given that it has holes for spraying the interior. Reverse the direction of the rotors in hovercraft configuration and you have a vacuum cleaner. Increase the power and you have a boring device. Reverse the dishwasher and you have a device for making clean washing up dirty again. If you want to.
Obviously this would be quite large, so it might be best to provide hose attachments and keep it on your helipad if you did want to use it as a vacuum cleaner, plus you would have to do a lot of washing up at once to fill what would be a shed-sized dishwasher, before you wanted to go anywhere or clean the house. But, you could do everything with one device and it would save space. Otherwise you'd have to find a garage for your hovercraft AND helicopter and room inside your home for your dishwasher AND vacuum cleaner. This way it motivates you to do the washing up before you go on a trip and stuff.-- nineteenthly, Jul 08 2020 //and you have a boring device// <yawn>-- pocmloc, Jul 08 2020 //Obviously this would be quite large, so it might be best to provide hose attachments and keep it on your helipad if you did want to use it as a vacuum cleaner, plus you would have to do a lot of washing up at once to fill what would be a shed-sized dishwasher, before you wanted to go anywhere or clean the house.//
Pshaw. Inspector Gadget could probably do all that with just what was tucked underneath his hat. And you didn't even need to turn him inside-out.-- RayfordSteele, Jul 08 2020 Easier to have changeable bodies. Tricky though, if you want hot swapping.-- wjt, Jul 10 2020 I just like the idea of it being rubbery and flexible. It's satisfyingly tactile.-- nineteenthly, Jul 11 2020 That conjures up yet more disturbing mental images.
A combined hovercraft/helicopter is likely to be practical, and could indeed be useful; a combined hovercraft/tiltrotor, like a V22 Osprey with underslung plenum chamber would be even better.
Hmmmm.
As to the other options, well, there are easier ways to commit suicide, shirley ?-- 8th of 7, Jul 11 2020 odd[+]-- Voice, Jul 11 2020 I'm working on a table with options for each of these things along the lines of direction of rotor, medium used and the like, because I think there are probably a number of hitherto unexploited possibilities, such as a wind machine and a slicing device.-- nineteenthly, Jul 11 2020 // wind machine and a slicing device //
Baked; 2-seater high-wing microlight with Rotax pusher engine - unguarded 2-blade prop.
Student pilot stalled at 20' above field during landing flare; aircraft stopped, dropped and crumpled; instructor in rear seat went backwards thru prop.
Very bad. Very, very bad indeed.-- 8th of 7, Jul 11 2020 random, halfbakery