If you have a hypochondriac or health care professional in the family, you can't beat giant microbes for gifts. These are stuffed animals patterned after microscopic images of germs. You can get stomach ache, a dust mite, and even bad breath, plus whole lot more. Better yet, each one comes with a name tag with scientific information and reasonable medical advice.
The hypochondriac and health care professional in my household got about a dozen different ones for Christmas. And the kids love them too.
The only problem is, my recipient is a box snooper (who insisted that they were getting better with age, and in all honesty I agree). Unfortunately, the box came to the door unexpectedly, and the only word visible on the packing list was Ebola. Needless to say I opened it right away to stifle any fears. So we've had a few weeks with these cuddly critters already.