I supervise about 200 people. I usually give plates of homemade cookies, about 3 per person. (yes this is 50 dozen cookies

) Even if I bought dollar store items, it would be far too expensive for me to give everyone an individual gift.
One year, I got tired of making so many cookies, and I did red velvet cakes instead. These were VERY well, received btw, but I'll never do it again. When DH came home to find 32 layers of red velvet cake cooling in the kitchen (and the dining room, and the living room, etc. lol) he looked around at it all and said, "How are you transporting all these cakes to work?" Oh wow, I hadn't thought of that. It was a nightmare, seriously. Never again. But everyone really liked them.
I guess I'm just doing cookies again this year. I also add a card with a simple note like "Thanks for all your hard work this year" or something similar. People like knowing they are appreicated.