Gridfinity rocks. I'm still working on organizing the top of my printer, and it really is helping. I bought some glass spray bottles for isopropyl alcohol from Amazon and wanted to make a spray bottle holder using the bridged holes (which print much better).

My bottle has a 37mm diameter, so I made the diameter 38mm. I also removed the nesting rim for it because face it, I don't think you're gonna put something above your IPA. Sorry, maybe it's just me.

Thanks to desaster for the template, and thanks to Zack Freeman for gridfinity.