There are loads of things you can get to make a living room alot of fun for suggies!!
I have a couple of Ikea hanging storage bins (You can pick them up cheap on ebay) I put different things in the compartments, and sometimes hide treats in there for them to hunt out, which they love

Rope is another good one, you can get it quite cheap for a fair amount

I hang bird toys on mine, and an extra strong rat tunnel which they love to play with...
Basically just get creative, sometimes the smallest things give them the biggest amount of fun

These are the storage bins


Hope that helps a bit
