I have just recently bought a custom 14 oz. photo mug from my local London Drugs store. For those curious how would it look like, I have a picture of what mine looks like below.
This cup cost me $20, but I was curious how my picture would look on a cup.
I am quite happy with my purchase. I must admit I look really good.
Therefore, for those wanting to give a unique gift, this may not be a bad idea. As you can see, I edited the original picture. You can do the same with your picture before putting it on a photo mug. Many places charge extra for putting additional text on your mug. A way to avoid the extra cost is to put in the text yourself inside the picture.