These rubber pets show up in many LPS auctions, or are sometimes listed by themselves incorrectly as vintage LPS. These critters were actually sold as a single giant set called "My Precious Pets Collection." I remember that I got mine at KeyBee toys. Although I sold these pets on Ebay a very long time ago, I kept the back of the box for some reason. If anyone is interested, I can post an image of that as well
I came across the photo of the pets - the photo I'd taken for Ebay - completely by happenstance today, and thought I'd share it, in case anyone is actually trying to collect the full set of these. The only item missing is a little gray mouse, because that was the one piece I kept from the set