Mystery Quilt Craziness

My MIL Carole asked me to participate in a mystery quilt that is just starting on the Quilters Club of America website. You have to join to view the details, but it’s free to join. Carole’s sister Kathy is also going to join us in making this quilt!

I’m making a lap quilt version, so I had to pick 18 jelly roll strips and pick a background color that contrasts all of them.  I chose white as my background and I’m using these fabrics:

Should be fun! Are you participating? Have you made a mystery quilt before?