DIY Tip - Hang your paint brushes up out of harm’s way by installing a couple of screw eyes or cup hooks on the bottom of a couple of rafters or floor joists. Then thread the brush handles through a stiff wire (welding rod works) and hang it all up.
49 Brilliant Garage Organization Tips, Ideas and DIY Projects - Page 31 of 49 - DIY Crafts. This looks like Bouillon Cube jar lids screwed to the board, so jar part can screw onto the lid. I've also seen done with baby food jars.
The plastic handles on my metal file cabinet had cracked and broken, so I decided to replace them with handles made from bolts, nuts and eye screws. I remember seeing this idea in an old issue of Read