The place has had another remodel and it's now just known as the Axis Boutique. There was JLO merch, Britney and then other stuff as well.
I'm a big Britney fan. Her show was actually what brought me to Vegas but I walked out empty handed. If you don't want something that says, it's Britney bitch or work bitch then your options are pretty limited. As we were walking out, I saw a bag that had 3 pictures of Britney on it. It was cute but not enough to make me go back in and buy it.
If you do really want some Britney swag and you're attending the show, you can buy the same hats and shirts inside. The prices are the same which is $40 for a shirt.