My design of the Star Trek TNG Combadge.

Since I don't have a MMU, I decided to split it in two parts.

Print in gold and silver, add a bit of glue and you're done!

For a shiny surface, print the Insert piece upside down.

The bottom has a hole to glue in a pin.

Fotos are of my previous design that I changed around a bit, but you get the idea ;)