You may want to check out the Gouthro's Moose Madness DVD series - he has lots of good information not only about calling, but also moose behavior, anatomy, etc.
I grew up in the interior of Alaska. We use a moose shoulder blade (scapula), and a funnel shaped megaphone out of birch bark for calling, and/or a large tin coffee can with a hole punched in the bottom and a 2 ft. piece of parachute cord hanging out the end by a knot. Wet the string, hold the open end of the can pointing out the direction you want the sound to travel, then pinch the string between your thumb and finger and slide them down the string to the end. Works well, and all of the above are cheap.
Most, if not all, of the sporting goods stores wherever you are in Alaska will undoubtedly sell a fibreglass megaphone caller that is durable enough to use for moderately raking the brush, mouth calling, and for scooping up water and pouring to sound like a urinating moose.
We bagged a moose in 09' by walking down a trail breaking branches, crunching brush lightly, and raking the brush with a small single antler from an old kill. A 46 inch bull was nearby, thought we were a small, younger bull, he came in to challenge. Some guys make the mistake of sounding like 'too big' of a bull, thus intimidating other bulls in the area.
Others have unintentionally called them in while trying to start a stubborn chainsaw....others by splitting firewood. That's a lot of work though, and don't know if it would qualify for 'traditional'.