Conversation so far:
What connection does Osceola have to relics?
Dr. Frederick Weedon was alone with the body and cut off Osceola's head.
Was Benjamin Strobel successful doing the death mask of Osceola?
An acquaintance of Pitcairn  Morrison, Dr. Benjamin Strobel made a plaster cast of Osceola's face and upper torso.
What happened after Osceola's death mask was done?
The process of pulling the first mold, which was soon displayed in the window of a Charleston drugstore, destroyed the original cast.
What did Captain Pitcairn Morrison do with Osceola's death mask?
Captain Pitcairn Morrison sent the death mask and some other objects collected by Weedon to an army officer in Washington.
Are there any other interesting aspects about this article on Osceola besides his remains being rendered into relics?
Osceola was of mixed parentage, including Creek, Scottish, African American, and English.

Question: What else was included in his collection?
Self-contained rewrite: What else was included in his collection?