This is a great screen shot of the (unmatched) bow tie and cummerbund Brad wears. Also a pretty good shot of Brad's shawl-collar tux and boutonniere.
The cummerbund is just black and red. The bow tie also has blue and yellow. The bow tie is doubled. I've never found the exact plaid on the bow tie (notice there is no green in it). I'm continuing to explore custom fabric options, but I have not had much luck so far.