I throw towel at him
I'll give her things to play with like a tea towel or bag of nuts / pasta in the bouncer whilst I'm doing chores. Peekaboo books or puppets. We just talk a lot and go out for a walk every day. Sometimes it might be frustration rather than boredom as they want to be sitting or rolling or just up at adult level (mine does anyway!)
I do yoga over him. He lies on the mat and I stretch and he can’t stop laughing. I also play with his arms and do bicycle legs so he does yoga too lol. I’m so bored of toys! It helps us to bond and I get a workout, win win!