I don't use bubblebath, so I am not familiar with the scents. For my kids, I always just poured some shampoo under the faucet, and voila! bubblebath. definitely not rose or lilac scents. Those are too strong. What perfume does she like? that might give us a clue.
Margaritas sound like a good choice. Not too many though, you don't want her to pass out!
