Weddingbee boards

i am getting my engagement pictures done for free by a photographer that is looking to fill up some free time in between projects.  i think she is a fairly new photographer looking to build up her portfolio (i haven't seen it, so i'm not really sure what her style is). since she is being so sweet and offering up her time, i'd like to give her something as a small token of appreciation.  does anyone have any ideas for what might be appropriate?  i just met her off a forum where she was offering free e-sessions so i don't personally know her.

TIA! 

perhaps a gift card. since you don't know her, a VISA or Mastercard gift card may be best since she can take it anywhere and buy herself a treat.

 i can't think of anything else since you do not know her likes/dislikes or tastes.

HTH