Hold the arm out to the side and move the head so that you are looking directly along the arm.
Use the neck chop to knock the hat and a let it roll down the arm. Catch it with an inside grip.
Raise the arm up and flick the hat back along it. Tuck the chin in beside the shoulder as the hat gets close and it will pop back onto the head.
The key to this trick is to move your arm so that the hat is always rolling "downhill".
The plate is held and thrown vertically, and spins in the vertical plane. Jugglers will recognise this as the way that rings are usually thrown.
From the TricksWithHats archive
Due to the closure of JTV, I am uploading some of my old clips from 2014-2015 that never made it into a video. This is a 4 ball bounced fountain while jogging directly into a dunk on the basketball hoop. Not sure if I've still got the hops.
Hold the plate by it's edge and spin it so that the rim stays in contact with your thumb. After a single spin catch it again. Once you've mastered singles try longer spins. This trick is very versatile and can be used to add lots of flourishes.
This is one of the videos that was filmed for our former site, TricksWithHats, which never went live. So it doesn't have a write-up and is presented here for posterity.