Re-sharing on this username (more under my old @ceralor maybe) but have been working on ear #haptics for #VRChat. OSC combined with contact senders and receivers makes this a breeze! On my own avatar my ears touched via hands or fingers, or custom terms feet/toes (like for laying down around folks) or nose or tongue, triggers an OSC value to talk to a #Python script which sends the value to a #microcontroller on my headset.

In short: touch my ears and I'll wiggle and yap cause I feel it!