You have to start by sawing the glass around the end of your light bulb with a sharp knife until its visibly cut into.Then you tap it off with a screwdriver
Even easier is grasp the lightbulb by the metal base with the glass down and the center connector facing up. Smack that center connector with a heavy spoon or light hammer and it will shatter the porcelin and center support. Leaving you a hollow light bulb with a hole in the end. Takes some practice but super easy once you get the hang of it. It also leaves the threaded base intact so you can seal it with a bottle cap and tape instead of messing with wax.
When they go to wipe it the glass etching solution will cause the sand to scratch and etch huge gouges in the surface of Plexiglas.
2 problems here. 1. Plexiglass is resistant to common chemical glass etching solutions. 2. Those solutions contain some nasty chemicals and acids, FAR from harmless. Might as well be flinging battery acid or drain cleaner at that point.
hydrofluoric acid HF eats glass but if it gets on your skin in smaller amounts it will mostly just penetrate it, leaving it mildly irritated for some time. There it starts dissolving calcium from your bones and attacking nerves. HF be nasty
Even easier is grasp the lightbulb by the metal base with the glass down and the center connector facing up. Smack that center connector with a heavy spoon or light hammer and it will shatter the porcelin and center support. Leaving you a hollow light bulb with a hole in the end. Takes some practice but super easy once you get the hang of it. It also leaves the threaded base intact so you can seal it with a bottle cap and tape instead of messing with wax.
2 problems here. 1. Plexiglass is resistant to common chemical glass etching solutions. 2. Those solutions contain some nasty chemicals and acids, FAR from harmless. Might as well be flinging battery acid or drain cleaner at that point.
I was just thinking, how is anything that can eat into glass not going to be corrosive to skin?
hydrofluoric acid HF eats glass but if it gets on your skin in smaller amounts it will mostly just penetrate it, leaving it mildly irritated for some time. There it starts dissolving calcium from your bones and attacking nerves. HF be nasty