Bab5 elements, including B5 station tunics, costume patches and pins, and Minbari headpieces.
Quality is unknown, but the price is reasonable.
I know for a fact that Katarra has based her patterns off original items that occasionally wander off-set. Prices are high, but for hand-made garments, not that bad. The Ring Lord - as above, but offers aluminium, titanium and stainless steel links, too.