That's not a sporran, but a pouch worn over the shoulder.. I like the knife placement on it too..
The flat horn is beautiful. I think I would like to get one myself one day, when I get my Longhunter/ Mohawk gear together.
which gets me to thinking, the Iroquois used to wear a "kilt" of black hide... I wonder if it's from the Highlanders they may have fought along side.