I don’t provide cake stands. I put all my cakes on a board that I charge the customer for.
But to give you an idea if you wanted to rent them. I use metal cake supports between my tiers and that is an item I need to get back so I took a page from Peggy Does Cake. I have them give me a separate refundable check for the cost of the plates. If they return the plates in 10 days I void the check and mail it back to them. If not I cash the check so I can buy a replacement one.
Hope this helps and gives you some ideas.
