The super fast jelly roll is what I was thinking. I have made 2 of them and I love how they come out. 1 of mine is in batik's that I am turning into a king size quilt for my queen size bed.
BTW I love the jelly roll you have those are some nice colors.
There have been some that have made bargello's using the jelly roll.
What ever you decide I hope it is fun to do.