The Bath and Body Works Shower Sponge retails for $3.50, it comes in 4 different colors (white, pink, purple, and teal) and can be purchased online and in store as well. The sponge itself has a very smooth texture to it, which feels amazing on the skin, and it also allows any shower gel to lather instantly, without having to pack on more and more shower gel.
I've been using mine for months, and it still looks great. Online they have a different strap on these shower sponges but they're basically the same thing! I would highly recommend anyone to try these out, they are amazing, feel great, lathers any liquid soap very well, and they are super affordable.