With all the Toys I buy for both my male Artie and my female Abigail, their favorite toy is a card board egg carton from a flat of eggs? Both of them go crazy for it and spend hours chewing it. In fact every morning when I get the eggs out of the fridge Artie is always waiting the next one. And if it's not completely torn apart they are always looking for it, I can't throw the used one away until I replace it with a new one. Does any one else give their babies this? There are no dyes in this? It looks safe? It's from recycled
card board I think?