Hi Janine - mine live in my lounge and without plenty of things to distract them they eye up the skirting boards for a quick nibble!
My two love carboard boxes (especially amazon ones for some odd reason), toilet roll tubes, yoghurt pots, eggs boxes, ping pong balls, and of course the normal array of shop bought bunny toys. I also seem to buy a lot of bird toys as they are wooden and hang up in the cage and the buns chew them but they are fairly expensive. Just find safe things form around the house for them to destroy!