Use for long lino tube?

I have a long cardboard tube the lino came on - it's too small for either pair of rabbits to get through, and very heavy. All 4 tend to ignore hay-filled toilet roll tubes anyway. Is there any use for this before I take it to the tip?

Guinea pigs love this kind of thing and hamsters. So, if you havent got either of these either get some (!) or find a friend who has.

No I don't have any piggies or hamsters - friend has a hamster but the tube is about 1000 times the size of him!