Traditional round tapered buttons, like those found on Gibson guitars over the last 50 years. These are slightly smaller than the strap button found on Fenders. Felt washers will help to avoid marring your finish (sold separately).
Golden Age Strap Buttons, Gold, set of 2
A History of Button Manufacture, Use & Classification
If you are looking for a tremolo that is designed for enhanced sustain and better reliability, then you have found it. The VSVG Vintage tremolo
Wilkinson/Gotoh VSVG Vintage Tremolo Nickel
Antique Gold 2 Hole Metal ButtonAntq Gold / 15mm
For vintage-style flush-fit installation. For mounting the strings through the body of a non-tremolo solidbody guitar., Drill 1/8 (3.00mm) diameter
Golden Age Flush-fit Guitar String Ferrules, Gold, set of 6
K&K Sound Gold Guitar Endpin Strap Button for K&K Guitar Pickups
10 Best GMT Watches at Every Budget - InsideHook
Golden Age Guitar String Ferrules, Relic Nickel, set of 6
Citizen Calendrier Men's Eco-Drive Diamond Bezel Watch
Golden Age Roller Bridge - StewMac