DNA11 has the perfect gift for the biologist who has everything: a DNA gel mini portrait. You can use the DNA collection kit on yourself to give a very personal gift, or collect from your giftee* for a unique self-portrait. It comes nicely framed, and you can choose from 25 different colors for the image.
* I'm not sure that swabbing the inside of someone's cheek is possible without letting them in on it. If you try it, don't blame me if you lose the tip of your finger!