I think honestly, it depends on the gift.

Ask yourself some questions as you're thinking about this.
Would you spend more on your T than on your spouse? Parent? Sibling?
Would you "die" if they refused it? If that answer is yes, then I say don't give a gift b/c you are too closely attached to accept a "thank you, but no" type of answer.

Some suggestions would be for things that they can USE!!! Books are always popular, espeically if they have some significant meaning for your therapuetic relationship. One therapist I had I turned on to Dan Allendar. Over the years, I gave him several of Allendar's books. My last therpaist and I shared a passion of photography, and when he left the practice, I gave him a framed print of mine that I knew he liked. It is hanging in his current office now. I would NEVER ever give a therapist of the opposite sex flowers. Too much to read in between the lines. Books, CD's, things you have created during your healing process. . .if you know they like a particular restaurant, a gift certificate is nice, but be sure to make it in an amount large enough that they can take their spouse.

When I was doing my internship at ECU, I had a client give me this huge box for Christmas. Inside of it were 2 dozen legal pads, a box of pencils, a box of pens, and a "Freudian type" pipe. I rolled laughing. I'm a serious note taker, bu I abhor Freud. She got the joke, and passed it on.