After 2 months of looking for the perfect friend for Gizmo, we've found her. She is a Ragdoll x. We get to pick her up on Saturday, and we hope Gizmo likes her as much as we do.
Last weekend we gave gizmo a white tiger toy almost the same size as him. He hasn't stopped wrestling with it and he even sleeps snuggling it. I think he feels like he has a friend. I really hope he and the new kitten become close friends.
We have a separate room for the kitten to begin with, and have used one of gizmo's blankets in her bed. Someone else suggested rubbing our warm socks taken straight off our feet on both cats to make our scent the dominant one. Does anyone else have any ideas?