I wish I could varnish them, but I have nothing on hand with which to do so, and the only place within an hour of my home that would carry whatever I need is Wal-Mart.
You can also finish polymer clay with things like Future or Mop 'N Glo vinyl floor polish (from grocery stores, and some drug stores, etc.), clear acrylic sealer indended for bare wood (from a hardware store), acrylic fingernail polish (not "enamel" though), clear glossy acrylic medium (art or craft store), and even thinned down permanent "white glue" like Elmer's GlueAll (available practically anywhere).
walnuts from my grandparents's front yard. The squirrels did the work of halving them neatly for me, and I have not been able to duplicate their efforts.
Walnuts are deadly hard to halve smoothly, especially black walnuts. Here's some info I've gathered though on the Christmas page of my website about halving them :
English walnuts are easily avilable and easiest to crack... originated in Persia but came to be known as English because the British merchant fleet carried them around the world in trade...grown mostly in California
.....black walnuts are harder to find and hard to crack (...taste wonderful but tree grown mostly for wood... native to the US, mostly in East...black walnuts leave black stains)
.......older (less fresh) walnuts do best...these seem to take on the smell of paint and taste is preferred by some)
.......soaking walnuts in water for 1/2 hour first may help
.......hold 2 in the palm of hand & squeeze against each other ...or use a nutcracker
.......OR cut easily with a band saw or Dremel cutting wheel
.......or hold in vise, and cut with small hand saw
.......or squeeze in vise, or in a trigger-type vise
.......or several cutting methods, most are complicated? http://tomclothier.hort.net/page21.html this isn't about halving them though:
.....my Greatgrandfather had a black walnut tree ...he would put us kids to removing the husks from the black walnuts.... What he did was to give is a board with a hole in it just slightly smaller than the walnuts with the husk on... we were also given a mallet or hammer ...the trick was to put the nut over the hole and hammer it through the hole.... I was amazed the first time I did it. That nasty greenish black husk just came right off..... (but if you leave the nuts lying around, the husk eventually splits and can be peeled off, at least that's what is happening to the nuts out in our parking area). J. Smith(from http://www.glassattic.com/polymer/Christmas.htm)