check out http://www.sutherlandwelles.com/ they sell polymerized tung
oil. It is teat treated tung oil and it works great. You can also buy it
from lee valley. they get it in bulk from SW and package and sell it. It
is a wipe on wait 5-10 minutes and wipe off. Depending on what I am
making, I apply 3-5 coats at least 24 hours apart. The more coats the
better the build.

Oops, should be heat treated, although it might be more fun to treat
teats with tung oil :-)