I’ve spent enough years fixing up old houses and outbuildings to know that a clever shop trick can feel downright magical the first time you see it work. This project turns a couple of inexpensive plastic pocket combs and a common garage item into custom-formed wall anchors for drywall, giving you a snug filler in worn or oversized holes when a standard anchor just spins loose.
It’s a practical little repair for folks who already enjoy tinkering and understand basic shop safety around heat and tools. I want to be clear, though: this is best used as a light-duty repair method for non-critical household hanging jobs, not for structural support or anything valuable overhead. Around my place, I use ideas like this for utility-room odds and ends, and I always test the hold gently before trusting it.
Materials
2 cheap plastic pocket combs, standard size about 5 to 7 inches long
Instructions
1. Snap or cut the pocket combs into small pieces about 1/2 inch wide so they melt more evenly and are easier to place into the wall hole.
2. Clean the damaged or oversized drywall hole and remove dust so the softened plastic can press directly against the drywall core.
3. Warm the tip of the drywall screw, then use it to soften one plastic piece at a time just enough to make it pliable rather than dripping.
4. Press the softened plastic into the drywall hole, packing it in layers until the hole is filled nearly flush with the wall surface.
5. While the plastic is still warm, twist the screw into the center to form threads, then back it out carefully without pulling the filler loose.
6. Let the plastic cool and harden completely for several minutes so it sets firmly inside the drywall opening.
7. Reinsert the screw slowly and tighten only until snug, then attach your lightweight item and test the hold with gentle pressure.
Variations & Tips
Best use: I’d reserve this method for light-duty hanging jobs like small organizers, lightweight signs, or utility hooks, especially in a workshop or mudroom where function matters more than a perfect finish.
Plastic choice: Cheap pocket combs tend to be a simple hard plastic that softens fairly predictably, but not every comb is made alike, so test a small piece first before committing to the repair.
Hole size: This works best when the drywall hole is only moderately oversized; if the opening is badly torn out, I’d move up to a patch repair or a larger purpose-made anchor instead.
Screw fit: A coarse-thread drywall screw forms threads better than a fine-thread screw, and backing it out while the plastic is still slightly warm helps create a cleaner channel.
Surface finish: If you want a tidier look, press the final layer just below flush and trim any proud plastic after it cools, so the hardware sits flatter against the wall.
Safety tip: Work with good ventilation and steady hands whenever heating metal or plastic, and avoid overheating the plastic; you want it softened and workable, not smoking or scorched.