Cleco pins are a definite must for sheet metal fabrication. They're basically spring-loaded, removable pop rivets that allow you to hold two pieces of sheet metal together in proper alignment for drilling or riveting. They work great for Circle Track use for test-fitting panels before they're permanently attached to your vehicle.
This is nearly identical to my first pilot logbook, but with a new smooth matte black cover. This logbook checks all the boxes from student pilot through Commercial. It might just be the only logbook you’ll ever need. Fly safe!