My cousin gave me a couple of pairs of shoes a while ago, she only wore them a few times and I have only worn the pair on the left once.
I was thinking of glitter for the pair on the left but leaving the buckle as is. It will make a nice pair of shoes that I can dress up or down and not be clumsy in. (I have been know to be quite the klutz)
As far as the pair on the right I am stumped.