1The inventor's latest contraption was a robot that could play chess, but it kept breaking down.
2Can you believe the contraption they called a 'time machine' in that old science fiction movie?
3The artist's sculpture was a complex contraption of gears, wires, and found objects.
4Try not to touch the contraption on the workbench; it's still a prototype and might not be safe.
5The steampunk festival featured all sorts of fantastical contraptions, including a clockwork-powered bicycle.