Any adult caretakers, assisted living, nursing home facility workers out there?

First off, thank you for what you do. I am seeking an opinion. I would like to extend a thank you to the staff of an assisted living facility that recently dealt with a trying and unusual circumstance with my mom. I'm wondering what a good thank you would be? What sort of things would say "thank you" to you? I ask because I used to be a veterinary assistant, and clients always gave us boxes of chocolates; Sees, Whitmans, Ghirardelli, etc. The clients were trying to say thank you, but these boxes literally reached to the ceiling and didn't get eaten very fast. I just want to give something meaningful, the situation deems more than just a handwritten card.