FWIW, I just called yesterday (WDW PLAY) and reserved haircuts for each of my 3 children (no first haircuts). I really only wanted the style/hair gel, but the CM I talked to said you can only reserve haircuts. The reservations are at 30 minute intervals, so with 3 children I had to reserve two different times ( 10 am and 10:30 am ). So, yes, you can reserve haircuts, but I don't think many people know about it yet.