Pokemon tattoos have been popular for a long time. I have seen many men and some women with them. They will look best in color, but can be pulled off in black and grey as well. It is all up to you.
There is a huge fan base out there for Pokemon stuff, tattoos are on that list.
Many people love the Christmas season so much that they get tattoos inspired by the holiday. I have seen everything from Santa, snow, The Grinch and more. Men and woman have gotten these awesome tattoos. Just try and be original. Get a good artist to do it.