I was just wondering, I have one of those really large blue ikea bags. You know the ones that make a crinkly noise when you lift them. I was wondering about making some tunnels out of them as I know my piggies like running through tunnels and I thought they may like the crinkly sound as they were running through. Do you think it would work sewing them into tunnels and also would it be okay if they chewed them. ?/ Let me know what you think before I start.