Fake BSC covers

One of the things I love about Googling the BSC covers is finding all sorts of interesting fake covers. I don't just mean the ones that have had minor photoshopping (changing Mary Anne's hair; plastering one Jessi face onto another Jessi body) but ones for not-real BSC books. Here are a few examples I found today alone.

All I can tell is that this one has something to do with zombies. Anyone get the reference? (If it's Walking Dead, don't tell me. I don't want o know.)
Credit: https://www.pinterest.com/pin/170222060891050476/

There's is a Pinterest BSC board with a bunch of hand-drawn covers labeled "BSC 2014. Here are a few examples:

I'd join the Gluten free fight club! Sign me up!
Real credits for this go to: http://www.buzzfeed.com/annmariealcantara/this-is-what-modern-versions-of-the-baby-sitters-club-would?sub=3414811_3569196