Bones of all sizes, plush toys (mostly for the smaller dogs), a week of free service (to a very select few) and a few cat nip toys. Obviously we let the client decide if they want to give the bones/toys to the pets or not. I'd say 80% of our clients will get something. The other 20% will just get there normal bill.
Tips for us are about the same this year. $20 here and there, a few gift cards and such. Our best one so far was a cooler full of deer meat with a case of Corona's sitting on top. Not my favorite stop but definitely my favorite client.

Have a great and safe holiday season everyone!!