It is an actual solution, you can get a nail in with a cube, it probably won't break 'till the fourth or fifth nail. (I have used glass bottles to drive nails.)

Your comment reminded me of Alex Papadimoulis' blog entry "Pounding A Nail: Old Shoe or Glass Bottle?"[0].

[0] https://weblogs.asp.net/alex_papadimoulis/408925

> (I have used glass bottles to drive nails.)

I hope that was just to prove a point and that you were wearing goggles and gloves. If not that's borderline Darwin award territory.

Only with very specific results, and I'm not sure goggles and gloves would affect either.