My first cover has now been completed, waterproofed and tested. I'm very happy with the results - a nice wet nappy & nice dry pants! And such a snuggly wooly boy to cuddle.
I've got the body of the second cover knitted up; now to finish the i-cord and add the cuffs. The wool is a funky purple-plum mix - I'm a bit sorry it's designed to be covered by clothing :)
I figure 5 covers is a good stash. I wonder if I'll get bored with knitting before then?