Hands-Free Wine Glass Holders 5 "It's the best picnic accessory!" Mrs Lawson 23 August 2009 These have been great! We've taken them along to all our picnics and everyone loves them! They obviously only work on glass/plastic glasses which have stems such as wine glasses.. so it's not for everyone, but I have a friend who spills more wine than drinks it usually at a picnic and so it is perfect for her! Genius invention! Thanks!