I think it's a wonderful idea and a sweet gesture to give a gift to one of our sisters.

Since we aren't a Panhellenic sorority, it's difficult to find items. However, our colors are red and white, and our symbol is the red rose. If you could find something nice with red roses on it, I know she'd love it. Or, if you're artsy at all, you could paint a wooden box with our letters or something...or paint a picture frame! Or go to a local Greek shop and have a T-shirt, hat, tote bag, blanket, etc done with our letters.
Good luck!