‪New, weird stim I somehow picked up in the last couple of months: bending an arm up at the elbow in such a way as to tuck my hand into my armpit, the hand itself bent in on itself at the wrist, so that my armpit is exerting pressure on the wrist joint.‬ Typically just one arm, while my other hand is holding my phone, or my Kobo, or the TV remote, or whatever.