very simple design i made with Tinkercad (i'm quite new to 3D printing, and this is my first design with Voronoi schemes). Since my girlfriend moved in, i've seen the amount of bottles in the shower multiply greatly, and I was in need of more space and this is the result. Hope you guys like it. 

I assume it is scalable to pretty much any size, i had it printed at 200mm per side. 3 outer/3 inner walls, 0.3mm layers, 200/60° temperature, white PLA, 10% infill. Took around 14 hours and around 150 grams on an Ender 3v2, with a 0.4mm nozzle, i reccon I could have used a 0.8 nozzle and saved quite some time, or lesser walls and it would still be quite sturdy, although i love the way it came out as it is. 

Feel free to share your times with different setups if you create one!