What collaborations has Jeff Hollaway done in the pen spinning community?

I'm sorry, but the available content doesn't directly address any collaborations that Jeff Hollaway has done in the pen spinning community. However, Jeff is quite active in the pen spinning community and has achieved significant milestones, like reaching 100,000 views on his pen spinning video.

Would you like to know more about his pen spinning techniques or his journey in the pen spinning community? Or perhaps you're interested in his other content creation activities?