Does anyone have any suggestions on a good but not too pricey liquid foundation brush? I'm still using the same one I've had from my theater days back in middle/elementary school, so I think it's time for an upgrade (I'm a high school senior now, it's been way too long). I stopped in sephora today (and definitely did some damage on my bank account...oops...) and I'm in love with their brushes, but can't justify spending $30+ on a single brush.
ETA: I'm allergic to pretty much any brush that isn't synthetic.