Yes, the topic is vague, I agree.
I’ve got an automat toolkit and I have several small percussion instruments. Now I’m struggling with bringing them together. I’m not interested in ad hoc installations that are changed all the time. I’d like to build a single device.
For the basic frame I’ve looked at MakerBeam XL, which would be a rather costly option. Wood is certainly cheaper, but I lack the skills and tools. Maybe a wooden base-plate and goosenecks for the solenoids.
One of my main obstacles is how to robustly attach a solenoid to anything. Suggestions for suitable brackets, or, say, perforated sheet, would be welcome.
Anyway, I’d like to read and see how you are doing these things.