The Beer Barrel Man!
The caps are gorgeous. I can't tell if it's just the picture or that's really a deeper shade of blue than the more muted navy the Brewers currently use, but I love it.
I'm also, obviously, a huge fan of the logo, even to the point of being willing to set aside my usual disinclination towards mascot caps. There's been renewed interest in the Beer Barrel Man lately, might have to incorporate that into a new article.
Contrats to Ben, and this should be interesting to see in Spring Training!