For those of you who expressed interest in my balls, I present to you the latest incarnation of my cat ball toy!
The pattern that came with my 'learn to knit' kit resulted in a ball toy that is more appropriately called a kitten ball. Sure, they were popular among my 12 lbs. and 17 lbs. neutered males, but my cats aren't kitties, they're CATS, and big, butch ones at that, so some alteration to the pattern was clearly in order.
I started out adding an additional row of knit 1, invisible increase, repeat and a resulting additional row of knit 2 together, repeat later in the pattern. The end product was a significantly larger ball, approximately the size of an egg and was very popular with my boys.
I then decided I wanted to supercharge the catnip delivery system to increase feline enjoyment of my toys. I decided to use smaller needles (#5) and put the catnip right in the ball, instead of in a pouch. But what was I going to do when the nip went stale or worked its way out between the knits? I decided to put in a trap door which could easily be unstitched (because it's stitched closed with a different color yarn) and used to introduce fresh catnip to the toy.
I'm thrilled with my big new balls, as are my boys. I know the attached picture doesn't really show off the details of the project, but it does hint at the enjoyment my cat has derived. Note the catnip haze in his eyes.