Next step is to pretty it up, mount it on a stand (possibly via a spring for maximum wobblyness when he giggles) and put it on display for people to play with when they come round :)
(, Sun 5 Aug 2018, 21:45, Reply)
Far too modern tech for your telephone exchange!
(, Mon 6 Aug 2018, 19:52, Reply)
Some sort of toy with a pull chord and a motor to pull it with...
(, Mon 6 Aug 2018, 20:08, Reply)