Started wearing a hat just for such, it is a bit different, has a 60s Kaki short sleeve 101st patch, pocket pin center, and the Recondo (LRP) pocket pin right, silver senior wings on the left. Hat is Chinese, looks like a Marine cover, but is not, something I found in the bush.
If you want to feel real old, go to Tulsa and have the reinactors show up and telly you they are reinacting battles you took part in. It is a real experiance to be shown you are history.