Hi K.-
Not sure if this will work for you, having small children, and not really knowing your situation and location....but anyway, for my mom's 60th birthday my sisters and I (5 girls) took my mom to a murder mystery dinner train in Bardstown, KY. It was about a 3 hr drive. One of my sisters and I actually checked it out before we all went, and loved it!! My sister and I stayed over night, but when we all went, we came home after it was over. We live in Cincinnati, and it wasn't too bad of a drive home afterwards. It is kind of pricy (actually went up quite a bit since we went), but I would have to say, if you and your mother enjoy that kind of thing, it was well worth it!! Obviously you wouldn't be able to take her before mother's day, but you could give her the tickets for a treat later on. I'll put the website on, so you can check it out.
http://www.kydinnertrain.com/
There is another one closer to home at the Hamilton County Park District, that is much cheaper. I have to say that although the dinner was phenominal, the entertainment was extremely poor. However, I think it was just the acting company on that particular night, because a friend of mine raved over the ones they have been to.
http://www.greatparks.org/events/murdermysterydinners.htm
We also gave her a photo/memory box where we put a whole bunch of pics of us, old and new, all over it and decopauged(sp??) on top of them. It turned out very cute. We put strips of paper inside with memories we have of growing up, but you could always just put put pics inside.
Sorry, I just thought of another one that goes along with the hand print pots. I am a teacher, and one of the cutest gifts I received was a Happy Summer pot. The child painted it, and inside was stones (like aquarium type)and pens that he had made into flowers. They took a bic pen (the white ones, not the clear ones) and wrapped the green floral tape around it and attached an artificial flower at the top. Then they put the pens inside the pot. It was a cute and useful desk top decoration.
Sorry about the rambling on, hope this helps!!
K.