Voila!
Liberty of London, Bloomsbury Collection, Copeland, Magenta Teal
So, my idea for the X Plus block is to use a dark gray-ish neutral print (see the left 3 prints below) for the Plus edges and to use a cream-ish neutral print (see the right 3 fabrics below) for the background of the X's.
Then I pulled fabrics from my stash to coordinate with the other colors in this print.
To make this block, I used the tutorial from Badskirt's blog, which can be found here, but to get a 12.5 in. unfinished block, I used the dimensions provided here and also here.
This is the block that I came up with...
I don't love this color combination by itself, but I didn't have time to make another one. I think it will look better once it joins its brother and sister blocks that my bee mates will be sending me. I can't wait to see the blocks everyone comes up with!