How much damage? Shrapnels out and acid aerosol, or just cracked housing?
I had a small pill bottle explode on me in a similar way when I played with electrolysis as a kid. Wasn’t exactly dangerous, but was a rather startling loud POP.
Todo: make a bigger one, a HHO generator variant with membranes to have them separate. To allow varying the mix for oxidizing or reducing flame (or for protective atmospheres, e.g. for induction brazing in hydrogen)…
