I've seen lots of people ask about the holiday hologram burst and holiday hologram blast tools. Those big flashies are really fun, at least in the social circle within AO, but they're no longer available in the item shop. Many of us would really like to see those brought back or something similar added. The bubble blower I believe was removed from the item shop as well, and was a fun little tool to have too.
It would be cool to be able to purchase the mech leet and some of the limited edition social pets that aren't in the item shop anymore. Maybe even make the balloon "pet" that you can buy with phasefront points available in the item shop too.
Within the social circle, we appreciate a lot of the clothing and hand-held social items, but I personally think the food plates, beverages, posters, nano sprays, and a few of the tshirts aren't nearly as desirable. We always love the bikinis and any clothing in colors that we don't typically see a lot of (such as purple or green or pink).
Also I'd still really, really love a pink silvertail doll. Even if it's not pink I'd be thrilled! <3