4 Vintage Tie Tacks with Chains This is a lovely mixed collection of vintage Tie Tacks. All pieces have chains. Very good condition! Various colors and materials including: silver, gold, jade etc. The silver one is marked "Swank" Enjoy! xoxoxo Val A tie tack (or tie tac) is a small, decorative pin with a locking clasp, designed to secure a necktie to a dress shirt, preventing it from swinging. Positioned between the third and fourth shirt buttons, it holds the tie in place, keeping it looking neat. Tie tacks are often worn with a decorative chain, adding both security and style to a formal or business outfit.