These Dolce & Gabbana sandals cost $2,395.00. You could make these sandals for less than $95.00, meaning that you could save a lot of money! To make pom-poms in a fast and easy way: http://www.homemade-gifts-made-easy.com/how-to-make-pom-poms.html, they might cost $1.00 each..There are online instructions on how to make yarn tassels also. The little pom-poms on a band can be purchased at your local fabric store. Perhaps you have a collection of little charms that you can randomly add, or purchase a few.
I sell vegetable-tanned soles, so they could be purchased, or make them yourself. You would need very thin leather to fold over and make the ankle strap, Hide House sells a thin leather – Plonge 22-32 sqft 1.5-2oz but of course you would have to buy a whole hide – not a wise purchase for a couple of straps unless you are wanting to make your version of these sandals to sell..I have some that might be useful if you want to inquire..
You can also get some design ideas from the Masai sandal sold on the brothervellies site – if you know how to make bead strips on a loom, there are lots of ways they could be used in making bands for sandals.