Young Justice Robin Birdarang (Green Inserts)

Print these in green plastic. Use glue to insert them in to the disc panels. If you plan on lighting the disc internally, order these in clear plastic or frosted detail plastic. You can then dip them in food coloring or paint with transparent paint. You can also drill from behind and embed the colored led lights directly in the plastic. You can pick up color led lights here http://www.modeltrainsoftware.com/miniatureleds.html