S.B.
How about a really nice hand-made thank you that you can put up in the office for everyone that helped to see. You could take a picture of your girls with the new toys or clothes holding a sign that said "Thank You" and then you can write a nice note thanking everyone for all their help and all of you can sign it.
I know I would love seeing something like that from someone I helped...and it will be free except the cost of paper and a picture.
I hope things are looking up for you! How wonderful to have a geat network of co-workers!
=)S.