The puzzle, produced by Sprinbok, is called Knit Knacks and is available at Hallmark Gold Crown and American Greetings stores in the U.S. and Canada. I also found it at my local yarn store, Shuttles, Spindles & Skeins.
I took a break today and put the 1,000 pieces on a card table. (My family would object to eating standing up while I work on the puzzle). The progress I make will be inversely proportional to the progress I make in my “day” job.