DVC Hoof question

Hi all,

I purchased the cloven DVC hooves a while back, and was wondering what would be best to put on the bottom? I want to be able to slip my shoe into it (probably sandals, I did that with my feetpaws and it actually worked great and was breathable!). Not sure what suggestions you guys could offer as to what I could glue/sew to the bottom of the hooves for a base.

thanks in advance!

-Cal