Is there a symbol or something that represents Charlemagne? I need to make a symbol of Charlemagne

The only symbol of Charlemagne of which I am aware is the
Iron Crown which represented his role as the first Holy Roman Emperor. The crown has
beeswax and other datable items to hold its jewels in place which date it to the
Emperor's time. There is some argument that Charlemagne himself adopted the Roman Eagle
as his own personal symbol, as it was the symbol of the Holy Roman Emperor. He has at
other times been depicted kneeling before Pope Leo III when he was crowned Emperor of
the Romans on Christmas Day, 800 C.E. Since his Empire encompassed both present day
France and Germany, there are images of him showing the French fleur de lis and German
Black Eagle as his symbol, although both were created after his death. If your need is
for a simple bust of Charlemagne, you might look online as there are any number of
busts, statues, etc. of him available.