Fingernail Friends Nail Stickers - Glow in the Dark By NPW Kids will love these space theme glow in the dark fingernail stickers. Although these can be used on nails of any size, the stickers are intended for children age 3 to 7. Each pack contains 25 stickers that have either alien, planet, stars & moon, space ship or other outer space image. Glow in the dark. Space theme.