I went and found a metal belt buckle I like and ground the loop and hook off the back with a hand grinder then laid on workbench and pounded it flat with a piece of wood, then took auto trim tape and stuck it on rear of backrest. Lots of metal belt buckles of all designs to choose from.
I purchased this metal eagle and flags emblem from JC Whitney several years back. It cost me $16.98 in 2005. You simply peel off the backing and it sticks on (just like our tank logo, etc.) -- fairly permanently. I placed it on the back of the plate on my NC/Paladin passenger backrest.