To bad it's not Imperial Fists, that would be a<em>lot</em>easier to fake, just a bit of scrimshaw with the right engravings. Besides saying something was used by an Ultramarine I can't really think of anything that would be considered a distinctive item we could get.<br/><br/>The only distinctive items I can think of are the Axes and Gauntlets of Ultramar, the Banner of Macragge, and the Armour of Antilochus.