Macks Prarie Wings has some "tradish" items in their catalog from time to time. I would try there first for a nicer, maybe leather, lanyard. Cabelas also offers some tradish things too.
There is a HIGH END ($$) hunting and fly fishing store in Nashville called Game Fair (gamefairltd.com) and although they do not really list things online you maybe able to call them to see what they offer. They are nice folks and maybe able to put you on to a "nicer" lanyard maker.
As for calls, that is very tricky. What I would consider trad would not be something that most hunting stores offer. Sometimes you can run across really nice hand carved, inlayed calls that are truly works of art, but these are typically not in stores or online. Also, different call makers cater to different regional needs. What works best in wooded areas, may not be the same for open praries, or open water, like the chesapeke bay, for example. That being said, in my neck of the woods people seem to prize Glynn Scobey and Johnny Marsh calls.
Having grown up surrounded by these sorts of things, one would expect me to be able to reel off a long list of potential offerings, but in my honest observation "trad" and most duck hunting apparel sties are two things that do not go together any more.