[Baalz]

Well, perhaps not Ulm national items, but you can have items that help Ulm and are difficult for most other races to forge/use effectively like the lictor thingy and the C'tis death mask. For instance...

Forge hammer & anvil (2H weapon) - 3e 1f increases users power in all paths for the sake of forging. Only usable by units who have a forge bonus.

Arcane absorber - 2e +5 RP, +4 MR, increases drain in province