Should I get my daughters "teachers" a Christmas gift? If so, what?

My 2 year old goes to a mother's morning out program two times a week for 3 hours. She has only been going for 2 months now. I noticed on Wednesday that some of the other kids and moms had brought in gifts, but not all of them did. After cl, they gave my little girl a Christmas card and an ornament for our tree. The last day before Christmas break is tomorrow. Should I get them a gift? If so, what should I get? We haven't been going for long so I didn't even think about it for my Christmas shopping.