I have 2 Thomson seat posts for sale, both are black.   

One is a brand new in the bag, 31.6 set back, 367mm.  Never been in a frame, I bought the wrong size.  $50/$60 shipped.

The second is a straight 31.6 that was in an Ibis Hakkalugi.  I cut it down to 280mm, so it's a little short but still has 7-8" of usable post.  It's in great shape, $20/$30 shipped.

No pic of the new post (it's new and in the bag), but here is a terrible pic of the straight one.  I'm in Asheville and can ship for $10, or might be able to work out meeting for delivery (or you pick up when you are up to ride!)  Call Eric with questions, 828-301-1100