Inexpensive homemade ferret toys.
101-ferret-games-homemade-ferret-toys by Ferret-World .com via Slideshare
Well look at that...a cage made out of a inexpensive metal shelving unit and hardware cloth!
Dig box magic More
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.
Finding ferret toys at Home Depot
Maybe not so high otherwise Clover wouldn't be able to get through there.
DIY Ferret Exercise Wheel - PetDIYs.com
pom-pom cat toys More