Since I'm in curmudgeon mode tinght, and it's too frikkin' humid to do much
else (or is that WHY I'm in curmudgeon mode?) I'll speak for the thousands of
rational people out there and ask the un-PC question:

Why not build it out of a nice wood, treat it properly with some
amber-transparent processed tree sap, and spend a couple of hours each year
keeping it looking that way, instead of spending days finding the "right"
plastic goop for it, and having it look like crup in a couple of years?

Steve "curmudgeon mode off...."