Boredom busters ideas?
Looking for some suggestions for some boredom busters for my girls as they're becoming quite destructive. They have lots of toys/chewing things but ignore 99% of them. I've tried carboard digging boxes but they just eat the cardboard. I've tried a giant litter box filled with paper or woodchips (not their litter to try and keep it different from their actual litter box) but it always becomes a litter box. Tunnels just get destroyed.
They love loofahs but only from one small business that is often sold out. Sticks are not of any interest to them, neither are willow balls even when stuffed with hay and treats. They love chewing my anti-fatigue mats and the rugs I have down over the hardwood floors (the rugs in the picture now have holes everywhere and I worry they will choke on the threads when I'm not home).
Pic for floof tax. (Also, they free roam and have access to fresh hay and water all day)