Trackpad finally got its surface mount conversion.  Only 3 bodges were required.

A bit smaller.  Without a top section, lions tend to grab around the button area to hold it.  How best to hold it is the next problem.  The right paw tends to interfere with the trackpad.  It has evolved into a pawheld trackpad for which there are no commercial examples.  Even the mighty $130 trackpad requires a table.

The trackball dream still isn't dead.  Finally noticed Ross Guy doesn't use a trackpad but a cheap trackball on his easy chair.

Thumb scrollers seem to be their most popular model.  Not sure if the smaller trackball is as accurate as the pool ball ones.  The home made trackpad glitches a lot from body parts getting near it.  Any water screws it up.  Keeping the stylus around has been a pain.