But it debendds what is put in crocheted eggs you can put rice,big beads, or just bells in them but when I use beads I yarn them all together because it scar's me if the ferrets swallow them,and as for the bells I use plastic ones but I reather use rice this why it is safe for the ferretsif they do brake.but the owner still has to keep a close watch on the toy just like anything else because everthing does fade out. Love Robin p.s. check out my toys on e-bay under vieiraferrets seller [Posted in FML 5711]