I just got two 3oz samples free in the mail from:
Tobaccos, pipe tobacco, tobacco blends
e-mail them (Jack) and you will get a sample of your choice and probably a sample of their Bargain Blend as well.
I got the Double Eagle and it's a nice chunky plug cut burley. I heard that 1776 Tavern is good and Chairman. Browse around and pick out a blend and then send in your e-mail.
You guys in the US will likely get your sample in 3 days - mine took a week (Canada).