I'd like to see an ironman BH store tbh with just things you cant get through gameplay or are already in other point stores. It would give a use to Skotizos emblem drops and the emblems from wilderness slayer/wilderness bosses. Amulet of the damned, fire cape, BH hats, fighter torso, dragon defender, whip color mixes, dark bow color mixes, ring of wealth scroll, saradomins tear, granite clamp, royal seed pod, goldsmithing gauntlets, ice gloves, maybe the ornament kits from the vote shop, and maybe even a "skilling box" similar to mystery boxes but they give skilling supplies.
With the skilling box you could get lucky and get 100 rune bars or you might be unlucky and get 10 grimy guams.