He hung the makeshift heavybag from an oak tree in the backyard .
The day after his Uncle 's comment , Frazier filled old burlap sack with rags , corncobs , a brick , and Spanish moss .
Frazier hung the makeshift heavybag from an oak tree in the backyard .
The day after his Uncle 's comment , Frazier filled old burlap sack with rags , corncobs , a brick , and Spanish moss .