Some of the DiYan puzzles are labeled as stickerless. They do not use tiles instead, but they use different colour plastics on the pieces. The corners have 3 main parts, one for each face. On a normal cube, these are all one colour and stickers go over the top. For the stickerless, they make, say, one blue, one white and one red. When assembled, these form the different face colours without need for stickers.
The stickerless cubes, however, are not legal in competitions. So I'd get used to tiles or stickers if I were you.
Please take off topic discussion off this forum. Thanks.