I have two Indy shirts, about 15 years old, only worn occasionally for work (I have at least 10). They have been on some really wild adventures over the years.
What do you do with your old Indy clothing?
Burn them in a fire pit with a toast of Scotch.
Just trash them.
Give them to Goodwill even though they are shot.
Use them to wax your truck.
Send them to Harrison Ford with no return address as a joke.

Max