Tucker has gotten a hold of hacky sacks on a few occasions and thinks they are wonderful. But I take them away because he will surely destroy them and I don't want him eating whatever is inside. My mom pinned a DIY knit ball for dogs on pinterest that pretty much looked like a hacky sack, but they filled it with fluff. It got me wondering if I could make my own hacky sack but fill it with something dog safe or even just empty a regular hacky sack, fill it with something else and sew it back up. I don't expect it to be super durable or anything, but I still think he'd enjoy it. So I was wondering, what could you fill a hacky sack with that give it a hacky sack feel but is safe for the dog to eat without actually smelling attractive for the dog to eat (I don't want him getting the toy and then just lying down and ripping it open to eat what's inside). Any ideas?