S.Y.
I would just write a nice warm note this would be appreciated -....really what is a $5 gift going to do for anyone...it will only stress you out and not really mean a whole lot to someone (sorry that probably sounds mean)...but if you absolutely have to give them something....then buy a cute holiday mug from Kohls ~$4 put in a few packs of hot chocolate and a few xmas candies wrap it all up in the clear or colored plastic wrap with a ribbon.
Sorry I am just not a gift giver to everyone I know...just my own character flaw I guess. I know you are tyring to be nice and let these people know they are appreciated.