Our planner was Tanis Armstrong and she was amazing, so we knew we wanted to get her something. During one of our phone calls she asked where I lived and if it was in wine country. So when I told her that I work at a winery she started to tell me about an Icewine from a particularly big winery in Niagara that she had tasted before. Well, little did she know, but my godfather is the cellar master at that winery and he was able to get me a bottle of Reserve, Limited Edition Icewine for Tanis. She was so cute with it. I gave it to her right when we got the the ceremony and she went everywhere with it. She only put it down if she would be nearby, but she definitely wanted to make sure she didn't lose it.
Tipping is definitely not necessary, but it is something you should personally decide on based on the quality of service that you received.