Here is a pretty Bling Clear crystal Bow Tie pin Reader/spectacle holder for that special occassion.   It measures 2  1/4" wide x 1  1/8" tall (not including loop chain).  The chain loop section is plenty big enough to accomodate eyeglasses or even the oversized sunglasses where the arm area at the temple can be either very thin or very thick that is in style today!  You'll love it!