Old art!

A signed photograph (technically speaking) of Harp, something that Harp would possibly put at Buster's gravesite or wherever fans put their momentos, private letters, and flowers for him. Since Harp has followed in Buster's comedic footsteps for much of his life, he has always wished to be trained by the master himself, but he knows that this cannot happen now. But this explains his feelings about being trained, to be more accurate at comedic timing, to take falls with perfect grace, and to be (at least) half as great as Buster. Maybe provided through luck-of-the-fall, or through spiritual guidance, he doesn't know how the world works, it just makes him feel better.

The photograph is a pose from Buster's film "The Navigator", and he's wearing Buster's usual costume (instead of the sailor suit from the film). The submarine hatch is being flipped open and he is about to be catapulted into the water. As Buster's crew members used to say "It's good luck when the boss gets wet." and he did get wet in nearly every film he's made.