Gifts...PLEASE help

[dtschuster]

Hello!
Our daughter has recenlty joined the Pi Beta Phi Chapter at her University. I got a letter this week about her upcoming initiation. Our family will not be able to attend as it is over 6 hours away and we work and her siblings are still in school. ANYWAY...the letter asked parents to write a letter describing my daughters accomplishments, also we "could" send flowers and a gift. So...I get that this is an important event but I am clueless as to what to do.
I have never joined a sorority and no one in my family has ever been in a sorority and I don't know anyone who has ever been in a sorority.
Pardon the pun, but it's all "greek" to me.
I need to know what is a traditional gift to give? Also, should get a gift for her big sis? Maybe she needs to get a gift for her big sis? Is there anything else I should be doing that maybe no one is telling me directly, but is more of unwritten expectation?
I have to say I am glad she joined, however I did not expect it to be so much work on my part.....
Maybe there is a "Sororities for Dummies" book out there I could buy.
Thanks in advance for any help!
Beth's Mom