Just make sure you get a very large shiny black leather hard case. Consider putting some stickers like 'remove before flight', 'i'm a pilot', 'B787' 'G650' and the like. Just in case people dont actually know you are a pilot, this will help. Remember the crew tag too. Always keep it close by in the flying club bar/clubhouse.
I once had a trial lesson student actually turn up wearing a pilot shirt, single gold bars, and a case like the one described above.