The back of the gilded medallion
some more information and photos are available here:
It is of course up to you to gild (cover with gold-leaf) your own, I recommend it in WSF dyed orange - it is probably close enough for a fancy dress costume - though you could also try aluminide and a metallic spray paint.
I don't know if this would work well printed in a metal - I think that all the detail would disappear, and it's too expensive for me to try though you are of course welcome to yourself.
I just added photos showing that it looks quite good in WSF in a gold-paint marker!
5.04 w x
8.426 d x
1.984 w x
3.317 d x