When condiments/chocolate syrup get low, they take forever to pour/squeeze out of the bottle. Of course, you could store them upside down, but they fall down every time you open the fridge door. You could buy the more expensive ones with the upside-down design, but you're not made of money.
You do have a 3D printer, though...
This was my solution to keeping my BBQ sauce, bleu cheese dressing, and chocolate syrup bottles upside down in the door of my fridge without them falling over all the time.
I may create a customizer out of this eventually, but for now I'll just upload it as it is.
You can use pretty much any infill you want, but remember that the holder needs to support the weight of a liquid-filled container in a cold environment. I like my usable parts to be heavier, so I used 25% and it came out flawlessly.
I took all of my condiments out of the fridge and measured the neck of each one. They tended to fall into 3 categories:
- Custom bottles with fancy/odd tops or caps
- Super thin bottles (soysauce and such)
- Mid-sized neck diameter (seems to be some kind of standard across brands)
I chose #3 as my target since my chocolate syrup, BBQ sauce, and dressings all fell into this category.
Made in OpenSCAD
- I made the hole diameter 2 millimeters larger than the fattest neck from category #3.
- I gave it a bottom without holes because I'd much rather wash it than the inside of my fridge if the supported bottle leaks.
- I gave it an elliptical base to match the most common cross-section of bottles. This way, other bottles crowding around it won't fall over.
- I beveled the top lip to make it look nicer.
- I included a small lip underneath to make removal from the bed, or sticky fridge shelf, easier.
For best stability in the door of the fridge, orient the holder so that the base's widest dimension is parallel to the arc of the fridge door.