> A 3D-printed enclosure is fine for a prototype, but a real product likely needs injection-molded parts, which require expensive tooling.
For kid-friendly toys, yes. But for older users not necessarily:
Wood is also pretty child friendly.
But neither injection molding nor carpentry will protect a synth from a child dunking it in a puddle of water.
I have two of those. They are great additions to my drawers.
One has a silicon case and is nicer to use though.
How are these, are they worth the money? I have seen these before, but thought they might be crappy "jokes". However, if they are decent, I would love to play around with them.