Tony Fisher
Veteran
Luminous stickers and cubes are nothing new. Previously though as far as we know nobody has supplied conventional sticker sets (one colour per side). Shapes and various other methods were used to distinguish the faces instead. Now Olivér's Stickers has started to sell full sets- http://oliverstickers.com/glow-in-the-dark-stickers/6-color-glow-in-the-dark-stickers . They are far from perfect and I know a lot here will hate the colours. They are however perfectly usable as I have demonstrated in my review which includes a full 4x4x4 solve in the dark.