wall decals kids room

at my daughters daycare, they have some kind of clear laminate sheets that they use to put kids artwork or photos etc on the wall, then apply these laminates ... i think they can then remove the photos or artwork from the wall without damaging the wall paint / wallpaper. (i assume the laminate still sticks to the artwork or photo though). anyone know where I can buy these? i would love to apply some of these to her room with photos of family, but be able to remove them later if we rearrange the room. I'd rather not hang frames of photos, or just pin or stick them up, since she's young.

thanks!
nope, i'm not looking for decals of things, i want it clear so that i can put OUR photos on my little ones wall, and then remove them later on ...