Some idea pics I found.
"Slats". This looks kind of tedious to build, and not very space efficient, but can accomodate unusual sizes.
"Cutouts". This looks very easy and quick to build, not very space efficient, can accomodate unusual sizes. Looks nice.
"Ridges". This looks tedious but easy to build, very space efficient, can only hold a standard size bottle. Kind of utilitarian looking.
"Cubbies". This looks the hardest to build, only moderately space efficient, only holds standard bottles, a pain to dust, but I do like the looks. Sort of old school.
"Diagonals". This seems easy enough to build, very space wasteful, doesn't hold individual bottles separate.
"Display". This is very space wasteful and holds bottles at the wrong angle.
