Nice, i like spalted wood. We cut a White Birch that was close to our house a few years ago and stacked the fire place logs out back and wouldn`t you know, yep it started to spalt. Put some in my shed to dry. I then cut some up into pen blanks and turning squares. http://www.talltimbers.etsy.com
This is the third pen and pencil set I have managed to get out of a single branch of Sycamore that a co-worker brought me a while back. It was very spalted, and this set was very pithy, so I knew it would take a little extra effort to make and sure enough it did :)
I needed a pen/pencil set for a customer who likes lighter colored slimlines, so this one is what I am hoping will fit the bill.