Anything along the lines of Eye modification items, and Mouth modification items that look nice with the Vampire Skin. I'm still eyeing the Theif SDPlush tho, one day it will be mine.
Before it used to be Companion items like Ren here but that stopped when the items didn't have anything else with them and it started to affect the little side AU that I have in my head with my avatar...
Eyes in a colour I don't already have are a big source of spending for me. The eyes in the Reve Rouille were why I bought that in the first place and I got Kuro's Induction largely because there weren't any other green eyes I liked. That's the main reason I'm after Rosamund's Redemption--I don't have any brown eyes yet and those ones are gorgeous.
Pretty much anything that overtly steampunk, Victorian, or pirate related. If it has a nice top hat, I will get it. Unless it costs every ounce of gold I have. Then I will just frequently stare at it sadly. emotion_8c