Here is a video of kittens from the Washington Humane Society starring in an ad for the United States Postal Service’s priority mail system. Kittens and boxes could save the USPS.

Want your own cat for box-playing purposes? From October 24 through the 31st, the adoption fee for felines (and dogs!) has been dropped to $31. It’s not clear if the kittens in the video have been adopted (I’m waiting back to hear from WHS), but there are plenty of other cute cats available.

Update: WHS says the two kittens, Cali (orange) and Cloud (grey and white), “are both currently in foster homes until they complete their pre-adoption evaluations, and they are expected to be available for adoption soon!”