So far, we've given our only grandchild photos of family members, some still here, some not. He just turned 4 and knows who they are. He doesn't get use electronics and he rarely watches any tv. He plays outside like we used to and our kids used to. He already knows how great it is to make things for others instead of buying things. We tell him stories and share whatever memories we can with him.
I don't have a lot of great memories from my childhood, but I can share a lot from his mom's childhood. Hubby can share loads from his own childhood. We can share a love of things we like to do, gardening, building things, being outside, being with family, etc.
My own kids always loved to hear stories from their grandfathers and just a couple of weeks ago, my son visited his grandparents and sat and listened to more stories Gramp had to tell him. I can still see him as a little boy, sitting on a footstool next to his Gramp, listening for hours and then coming home to tell me how Gramp did so many great things when he was a young man.