Throwing it back on this Thursday to November 16th of 1995, when Phish got a visit from Butch Trucks in West Palm Beach Florida.
Given the location and time period, I'm a bit shot this video exists. Video footage has been uploaded by IkoIko95. Butch takes Fish's kit, leaving the drummer to prowl the stage and offer a few trombone blasts on "Possum" while alternatingly pounding away on Trey's Fall 95 mini-percussion kit.
Listen carefully for a few "One Way Out" licks from Trey as well.
With only a few pans over to Butch, perhaps you'd enjoy a bit more? Here's a video drum lesson for one of the Brothers' most popular songs.