Guild Wars 2

Aside from getting it from loot, is there any way to craft any of the tiers for the Scavenging rune line?

As far as I’m aware, there are a total of 57 Runes with 24 of those Craftable (this includes 1 for each profession) with 8 purchased from Dungeon vendors in Lions Arch vendors and the other 25 received as loot.

I would recommend, until a recipie becomes known (should there actually be one) that you utilise the trading post. Unfortunately I know of no one at this time that can craft one despite significant attempts having been made.