Lightbulb holder sorter

I have a lot of lightbulbs that are currently not in use but I'm still keeping for whatever reason, and I wanted someway to "sort them" or something just to hold them in one place where I can see all the bulbs and couldn't find a "thing" that suited my needs.

Made with Tinkercad as I'm not that experienced with making 3d models.
The holes and the pillars are definitely not aligned perfectly, but it works and I'm happy with it for my usecase
If you like it and or want to re-create it or something then please do go ahead, also leave a comment if you'd like

The holes are 40mm and so far fits all bulbs I've tried