Cheap and would keep the ferrets occupied. Need to think where both end of the pipe go to though.
Small Pets DIY... Ferret ball pit made from plastic Easter eggs. I got 144 of them from oriental trading for $10 The eggs are also great for balls to roll around when you put beads or beans in them.
DIY crinkle plastic ferret toy
An electronic weasel ball! The weasel is attached to the ball and rolls along with it. Great company for a ferret. #affiliatelink
Ferret fun, What a great idea!
So easy!! Make a cat tent out of a t-shirt and hanger!!
Marshall Pet Products Pop-N-Play Ferret Ball Pit Toy at PETCO... But it would be way cooler to make it yourself
Ice cream bucket houses
DIY Sleeping bag for you ferret or small pet - Stuff to Love by JCLN @Ashley Walters Bilek
Dig box ideas for our ferret