Having been a specky four eyes since the age of six, I've been tempted many times to hang my glasses on a chain. I've never given in and yet I really love this glasses necklace. It costs £22 from Tatty Devine in the UK and is also available for $33.95 (i.e. a lot cheaper) from the Bust Boobtique in the US. Spectacular. (Sorry.)
Related: Tatty Devine 'Price ticket' purse | 'Wise Owl' necklace by Hannah Zakari | Helpless Romantic's 'Say Anything' necklace