If the camera on your mobile has become as indispensable as the phone itself, you might want to liven things up a bit with these add-on lenses from Kenko Digital in Japan. These inexpensive lenses come with a strap so that you can hang them from your phone. The lens itself has an adhesive cushion so that you can stick it temporarily over the lens of the camera.

There are 14 different types to choose from, some offering two special effect lenses on the same strap. You can add a colour tint to your photo or zoom in on your subject, for example. My personal favourite is the one that makes your subject look slimmer - your friends will love you for using it!

A selection of these lenses are available online from DOML.