Start with your basic pair of wedge shoes. Clean the base and while I didn't do this, you might want to consider giving the wedge part a good sanding with sand paper to help prep your shoes for paint.
Paint the base of your shoes with white acrlyic paint. This took me several coats of paint and for some reason, diluting the paint seemed to work best.
Using a stencil, black acylic paint and a sponge or regular paint brush, paint your letters to write out whatever you want on your wedges. I chose to write "Cinderella Slipper" on mine but you can do whatever you like.
Once all your paint is dry go back over your painted area with modge podge to protect the paint and give your shoes a nice shinny finish.