The first thing you want make sure you don't do is buy anyone a gift card. Retailers make billions every year on unredeemed gift cards. They're easy to loose, throw away, or forget about. That money you spend on them will go to waste. Not to mention the risk of buying someone a gift card to a store that's going to go out of business after the first of the year.
Instead of buying your loved ones things that they already have two of, get them something that will help them get prepared. Little things like flashlights, batteries, canned goods, MRE's, or anything else that is related to preparedness. Get creative; one thing you can do is make out a good list for a general 72 hour kit, purchase some of the items for it and give that as a gift along with the list. The idea is that the person you gave it to would finish the kit and have themselves a good emergency kit.
If you have trouble getting the idea of getting prepared through to your loved ones this is a great way to break the ice and plant the seeds in their minds. Books on gardening, preparedness, and bush craft survival are also great gifts and can get people's minds on the right track to getting prepared. What better way to show your friends and family that you love them by getting them things that could ensure their survival and possibly save their lives.