Not usually, they get enough special treatment every day. I do buy "them" Christmas presents, this year they got a couple new headstalls, half chaps, spur straps, 2 new myler snaffles.
I do plan to do something to celebrate Hondo's upcoming 30th birthday though...not sure what. He's already spoiled and gets hot mash for meals, maybe I'll let him have a bit of molasses with it ;)
Life is like a camera. Focus on what's important, Capture the good times, Develop from the negatives and if things don't work out, Take another shot.