Gifts for Grandpa can be hard to shop for. When he spends so much of his time giving to the grandkids and his big kids, it can be tricky figuring out what your Gramps will want for himself. But don't worry — we've done all the research for you. From the creative to the functional, show your Pops how much you really love him with one of these gift ideas. We swear he'll still be using them at the next family function.