- I am not sure if this is even a word, it just made sense in my juvenile vocabulary.

You are kinda on your own for this one, I pried mine off of an old chair in my garage and filed the backs off with a dremel. If using an authentic sized rubik's cube, these will need to be smaller than 5/8th's of an inch square, and preferably no deeper than 1/16th of an inch (or the cube will become noticably cumbersome in size). If you can only find 5 shapes... don't fret... remember that a single side missing shapes is still an identifyer (provided all other sides have identifyers). Other options (not as cool looking in my opinion) are sandpaper, wood, cardboard, plastic, etc. Scrapbook or craft stores might be a good place to shop for something like this.WARNING 1: The Designs must FEEL different from each other. Each shape needs to have a distinguishing characteristic to differentiate it by touch rather than sight. THIS IS IMPERATIVE.WARNING 2: It is best to ensure that each of the 6 shapes is quadratically symetric* in design (i.e. turning the shape 90 degrees yeilds same design as before turned). This ensures that after mixing and solving... the cube looks complete (note that one of my shapes does not follow this rule).Many who are new to Rubik's cubes are unaware of the fact that if you were to draw arrows on each square of the cube when you buy it, solving it to perfection is not as easy as some pieces will not be soundly placed (arrows in all same directions). See picture for understanding... you see the colors are all in place... but the cube is not truly solved. Unless you know how to solve a cube like this... you will want to ensure the designs on the tabs are symetric as I mentioned.