Amazon.com: TOOVREN Upgraded 8 Sets Button Pins for Jeans Pants, No Sew Perfect Fit Jean Button Tightener Replacement Adjustable Reusable Metal Clips Snap Tack, Instant Reduce Too Big Pants Waist : Arts,
Apparel Buttons
Amazon.com: Taoqiao [Upgraded] 8 Sets Perfect Fit Instant Button, Adjustable Jeans Button Instant, 1 inch Buttons Adds Or Reduces an Inch to Any Pants Waist in Seconds
Know Your Button Types: Donut vs. Tack
Button-Front Jeans | Rank & Style
How to Replace the Button on a Pair of Jeans (with a New or Used Jeans Button!) - I Am Sew Crazy
Amazon.com: Perfect Fit Instant Button, Instant Buttons, Jean Replacement Buttons Removable Button No Sew Buttons to Extend or Reduce an Inch to Any Pants Waist in Seconds! (8PCS, Style 1)
I tried the no-sew, adjustable jean buttons for waistbands
Amazon.com: Enosea 17mm Brass Jeans Buttons, No Sew Metal Buttons Tack Buttons Replacement Kit (Red Copper)