... or rather "requested."
I'm going to assume most here know what I'm referring to:
My question is this: I am about to build some of these for myself, & I'm wondering what type of liquid would be best to use so they will "last."
My plan is to make them air-tight (aside from a bubble of air-space inside), so I would like WHATEVER goes in there to [IDEALLY] not evaporate, spoil, mold, mildew, discolor, rot, morph, evolve, etc.
So I'm hoping for either a boatload of suggestions to mull over, or better yet, the same suggestion over & over that would be equal to some kind of known absolute about such things.
So what say you, RPF Collective?
Thanks in advance...