An invention for the future!
If I had to make an invention for the future I would call it the Backscratcher 2000! You would never have to scratch another relative's back again! My machine would be voice activated. When someone says that their back is itchy it would automatically activate. Then, using it's long robotic arms and claws, scratch your itch for you! The robot's arm is made of a special metal that heats itself for a soothing back itch! It's arm will also hide in a compartment in it's back. When you are done, just tell it that you are good and it shall leave to rest. It is only about one foot tall, but it grows to five feet when it has it's arm extended! That way if you are tall it can still reach you to give your back a good itch!