maryquilts has a quicky strippie that I really like. You could make them all diff, or find a focus fabric to go with your stash. A wide border would make it bigger fast. Here is the link:

http://www.maryquilts.com/quick-strippie/

Rail fence came to my mind too. They go together fast and are fun to arrange.
Guess I'm the only one that doesn't mind the sunflower fabric. Thought it looked good with the green on green fabric.

Let us know what you end up making.

I would add in chocolate brown to tie all the other colors together. Dark brown always seems masculine to me, and it would go with all the other colors you have laid out.

You might also want a warm brown flannel for the backing.

I think all but the bright pink print. I like the sunflowers. I would do a log cabin or a rail fence...quick and easy. Great when scrappy too. If you have a dark brown, I'd add that to make a bit more manly.

D9P with the sunflower as the center[that way gets cut smaller] use withe blues --red one as small borders+binding --good wishes for you+yours

Since it needs to be fast, I think I would do a extra large sawtooth star. Depending on how your cousin feels about florals and yellow, I would thing the center of the star might be that lovely sunflower with red or the pale blue starpoints and the great ferns for the background. ( I mean one sawtooth star of about 40" finished size. adding whatever you need in something like Chinese Coins for the border.)

Of course one never knows in any individual case, but 2 friends credit my quilts with their recovery.... one from stage 4!!!! brain cancer. Nothing says caring quite like a quilt.

A D9P goes together quickly. You only need 3 colours.