I got sick of spilled coffee in my lap and on the floor so I built a two cup
holder from some scrap teak I had laying around my shop.  Basically, a shelf
with two proper size holes to take some of those thermal long bodied cups
with the screw on lids.
  The cup holes are on the ends of the shelf, which is about 1/4" thick and
as long as that cowl that covers all the heater stuff ahead of the gearshift
lever.  Between the cup holes, I put a couple of uprights with a nice curve
and a slight "fiddle" is the yachting term, on the front edge between the
uprights, making a small tray for change, pens, small stuff.
  This shelf/cup holder is screwed onto the snap-on heater covering piece
from the back side.  Works good and looks nice.  I also made a 'fiddle'  or
a coambing for the top of the dash.  I "let" some magnets into the bottom of
that to keep it in place.  Makes it handy to toss stuff up there without
fear of it plopping off, and you can just 'pluck' it off to wipe off the
dash..
  I have no place to post pics, but anyone interested, I'd send some along
attached to email.
  Don Hanson