I made this a week or two ago. I use cheap ~30 cent two-way nail polish bottles from ebay to color my models, but they usualy fall arround in a wooden storage box. Chaos!These low-profile holders are enough to hold onto the bottles and can be glued together to form a larger grid. (build area aprox. 115x100mm but can be easily adapted for other sizes/grid setups).Print, glue, store!I included a new but untested version that most likely fits together easier. Still, it would need some easier click-lock joints, though with instant glue it does not really matter.