Not just used, but probably by several different people in multiple holes over several decades. Look how tweaked the douche itself is.
Found this too: https://www.ebay.com/itm/LOT-3-CLOTH-DIAPERS-/390342148815?pt=LH_DefaultDomain_0&hash=item5ae23482cf
I can't believe people actually bid on these. Man, people are strange.