Cover Coincidence

The PTO book fair is taking place in my library this week. It's a Scholastic Fair so the perimeter of the room is lined with those giant carts that open up and displays books face-out. The selection this year is fantastic and I have a pile of books I NEED to buy for the library right now! 

I noticed these two covers:

 

And thought, didn't someone do a post about jars on covers? Yes, Travis Jonkers' Cover Curiosity did notice. Click here to check out other covers featuring jars.