I am hoping to pick out something that they're likely to enjoy, reasonably priced, and buy it for them (as long as I can afford it). My BM's all have different tastes so I thought it'd be easiest if I made the executive decision and then paid for it so they didn't have any room to complain
Like others have said, i think it's a very nice, unexpected gesture, if you're able to spring it. I plan to look at victoria's secret, jcrew, etc, and catch a sale.