All toy instruments should have MIDI jacks –
The idea was to take a child’s toy xylophone and get the computer to play it. Now I know that the computer is capable of making noises electronically but it is much more interesting to watch an instrument being automatically played. I am sure you have all seen crowds around fair ground steam organs, whereas tapes of the same hardly sell at all.
Sounds quite nice. Retrofitting persussive instruments with solenoids can be a bit of a challenge – check the site for more build details – MIDI Glockenspiel [Thanks, Alex!]