Every few years I remember that the Alternative Limb Project exists and get blown away once more by their work.
This one is half hyper-realistic, and half swapable sections based on the woman's personality, moods, and spirituality.
This one comes with a DRONE and has control panels in the wrist and forearm, as well as a flashlight and laser pointer.
This one is older, from 2012, but I still love it. Shiny shiny.
This one has a WORKING CUCKOO CLOCK IN THE KNEE. A WORKING. CUCKOO CLOCK.
Another older one, this one with realistic snake.
This is a two part one, dedicated to railway workers/builders/passengers who lost limbs. The limbs can be hooked together to allow the little train to travel between them.
This one is a literal swiss army knife arm, full of survival supplies.
Just. GAH. They are all so neat.