I got two boxes of Hamerers in the other day. After snipping away all the extra bits left over from the molding, I gave them a quick scrub in some dish soap to get rid of any oils then glued them to their bases.
Also, after creating a test dude I changed all of my bases from green to grey. In the near future I plan to add snow to all the bases so they'll match the winter themed board I'm putting together.