Rubber grommets! This set of grommets includes both an open style to relieve tension and protection, and a leg style (no holes) to protect the surfaces your project sits on, prevent slippage, and provide a small flow of air for cooling. (assuming you made this tutorial at the end of your project). Sizing is easy and very helpful. The packaging is just great with the caveat that they don't drill holes or give inside dimensions.
CargoLoc 82473: Secure π Your Cargo With 10 High-Quality Grommets
11 Review
Cal Hawk AZGA125 Grommet Assortment Electrical: Complete your Electrical Projects with Versatile Grommets!
9 Review
π§ General Tools 1261 4-2 Inch Grommet: Enhanced SEO-friendly Product Title
9 Review
π§ Grommet Guru: Unleashing the Power of MEZOOM's Diameter Setting Projects
9 Review