Ours loves....
The washing basket - with or without washing.
Paper bags.
Cardboard boxes - he loves these especially.
Rolled up balls of paper being thrown.
I discovered he loves to chase plastic bottle tops round the kitchen floor (they were on the drainer)....one is now attached to a piece of string attached to the end of a long cardboard tube (from christmas wrapping paper). It's great for Bengal fishing.
When we changed the duvet last he liked being on the sheet while we each held the corners and lifted him up (Indy trampolining).
Aran has some toys Indy really loves, a real pinball machine being one which he loves to sit on top of and follow the ball round (bit of an expensive toy really
).
Remote control mouse, car and mini helicopter.
The computer printer - he always runs into the room to watch it when he hears it starting up.
Toilet paper - he thinks he is an Andrex kitten so always keep the loo door shut.
You can't read a newspaper without him wanting to be in it.
I'm sure I will think of more stuff. Indy usually comes up with the idea of what he likes with the stuff we leave lying around