I have one lazy boy and one very active boy. Their cage is open for a bit on a morning and both boys come out for over an hour on an evening for free time. My active boy Remus has just discovered he can get under my jumper and in my pockets haha. They give me those cute eyes when they go back home on a night so I'm trying to find them interesting things I can put in their cage to keep them stimulated until bed time. Last night I got a box and filled with tissue paper, cardboard tubes and their cat balls. They absolutely loved climbing in and dragging everything out. Anyone have similar ideas?