Last fall I got an inexpensive 3D printer (Ender 3 Pro) and have been surprised at how it's made "shop life" better. What are your favorite things you've made for your shop? Here are mine:
Pictued above, this have 100% solved how to store these things. Just printed with PLA, they're quite strong and fit the tools perfectly.
#2: Tool Well Storage Bins
I made these to fit my bench's tool well. I had been using jars and other round containers but their shape wasted space and they didn't have internal divisions.
Nice way to keep my most often used bits out of a drawer and easy to find.
#4: 4" x 120mm Dust Hose Adapter
While not glamorous I use this every time I use my table saw.
I'm doing basic, functional stuff so there's thankfully not much to figure out. I haven't done any mods to my printer. The bed stays level as long as I'm gentle while removing the print.
The only thing I've struggled with was layer and bed adhesion during cold weather. To solve that I made a simple enclosure and also slowed down my first layer.