Excellent questions! We have a 'dig box' which is a plastic bin that
is about 8 inches deep and 2' by 3' (approximately). We filled the dig
box with the same balls that you find in those inflatable jump houses.
The balls are about 3 inches in diameter and they are flexible but not
flexible enough for the ferrets to get their teeth in to them. You can
find the balls at Toys R Us. FYI - we do not put the lid on when
allowing the ferrets to play in the bin full of balls. I never used
ping pong balls but two things I am sure you will find out: it will be
costly to buy that many ping pong balls and they need to be washed
since they have a powdery coating on them when they ship. You will
also have to keep an eye on the balls so that if one gets smashed the
ferrets aren't biting in to it.

 I looked at the product Super Pet Chilly Chews which looks like an
ice cream cone. They don't specifically state that the treats are for
ferrets. I know some one out there makes a french fry treat but what
we use are the Pounce cat treats in the bag. We use the harder type.
Not only do they work as treats and ferrets come running when you open
the bag but they are also good for their teeth (supposed to help clean
teeth).

  Dave

On Oct 7, 12:45 am, Lady Rhubarb Gigglegarden <tomast...@yahoo.com>
wrote:
> I have a young ferret, under 1 year old, named Felix. I want to make
> a dig box for him. Which would be safer and more fun for him, a large
> plastic tote, 56qt/ 53L, filled with ping pong balls or a starch based
> packaging product. How much do you think it would take to fill it. If
> I use the the plastic tote I will not put the lid on with Felix
> inside. Or would card board boxes be better? Also I saw a product
> called Super Pet Chilly Chews on amazon.com its ingredients are:
> calcium, salt, oyster shell flour, artificial color, and natural
> flavor. Have you heard of this product before? Is this safe or
> necessary for Felix?