I found these clear plastic "slippers" in the wedding section at JoAnn Fabrics. They come 24 in a box for about $12. I used my 50% off coupon so they were even cheaper!
Mix red glitter into white glue. Paint it on the slipper and then sprinkle more glitter on the glue.
Once they dried, I gave them a coat of gloss Mod Podge to seal the glitter.
They look just like real Ruby Slippers!!
I wrapped them in cellophane bags and tied this quote from Glinda the good witch: