Some choice signs up for auction and a rarity more rare than a summit sign (which are not sold), a 3D fiberglass model of the mountain. I knew of two, one in the headquarters building and one in the Roaring Brook porch, not sure how many others there were.

Friends of BSP is a big influencer and watchdog over the parks future. If not for them the Northern Peaks trail ( one of the most remote and spectacular hikes in the park) probably would not have been reopened.