I wish I had the skill to turn little ditty's out on a lathe like that! Those plastic cutting boards have come in handy for ALL KInds of projects!!
I had gotten an '85 CR5 years ago (that happen to come in 4 or 5 boxes) and the both chain slider(s) and guide was made of one...
Now why didn't I think of That!?
Keep up the good work,
Tuck\o/