As an added bonus, many of the gifts below were created or initially designed as part of a successful crowdfunding campaign. Not only will your loved ones enjoy their gift, but you are also encouraging future citizen science projects. Sounds like a win-win to me!
Diary of a Citizen Scientist is the perfect gift. It will teach them what citizen science is and help discover many new projects you may not have known existed. Bu more importantly, you get a first-hand view of an individual woman's journey into the field as she digs into the ecology near her home, finds out there are many unanswered questions about some of the local inhabitants (tiger beetles), and works with some professional researchers to answer those questions through patient lab technique and field work. It's a personal recommendation of mine, and you can read a short review and excerpts from the book here. In fact I'm picking it up for a family member as well.
National Geographic Genographic Project can take your DNA and help discover where you come from and how your ancestors may have lived. The project database is built on previous participants as well as the data you submit yourself, so it continually learns more. Feel free to check them out directly or look at my personal experience with the project here. Similarly, for you pet lovers, Wisdom Panel 2.0 can help you figure out which breeds have contributed to your dog's pedigree and where they came from as well. All it takes is a cheek swab.
MakerBot Replicator. Design your own creations or download one of the many publicly available designs for a quick start. The only downside is that at $2899 it's not cheap. For a more affordable alternative, check out the 3Doodler Enthusiast Bundle for $170. It's a pen-based 3D printing tool complete with starter kit of supplies. A great way to get your loved ones feet wet before taking the big step to a full-blown printer.
Windscapes Timelapse Camera. Place it out in the wild or just your backyard, and beautifully capture all the feathered visitors for posterity. And if you are so inclined, it can help with species identification and your involvement in any number of projects, such as Project FeederWatch or the Great Backyard Bird Count. All for the price of $78.
Meade StarNavigator 102. It comes with and and comes well reviewed by many reputable review sites. But if this specific one doesn't work for you many buyers guides are available, such as this one at Space.com.
Compounded. A game for 2-5 players, each person is a lab manager who must build various compounds by managing their elements and trading wisely with other players. Perfect for the chemist in all of us. For those with a more historical bent, The New Science let's you take on the role of a famous 17th scientist. Help them perform their research, publish their studies, and climb the ranks of the Royal Society. Many Society members (and the scientists featured in this game) could be considered citizen scientists as well so it's a perfect fit for us!
Still trying to find that perfect something? Check out my 2012 Citizen Science Holiday Gift Guide for even more great gift ideas.