I added a couple projects to Jon's Imaginarium you might find useful.
The first is 3D Printer Project: Hot End Inspection Mirror. With my recently acquired used 3D printer, I've learned that the hot end may need cleaning when things don't go as planned. I designed an inspection mirror that makes it easy to see the hot end from a comfortable position. I've designed two versions, adding an LED to the first version for illumination. STL and (my crude) OpenSCAD files are available to download.
The second article is for A Dremel Bit Organizer using corrugated plastic. It's simple to make and accommodates bits of all sizes.