I'm so sorry for your family's loss.
My grandparents were Hawaiian snowbirds for over 40 years, and my grandfather loved Hawaiian culture. His Hawaiian memorial service was the most beautiful, touching service I have ever attended.
I made a quilt for my grandmother from my grandfather's beloved collection of Hawaiian shirts. It was really, really hard to cut the shirts up, but once I got them de-boned, it got easier. I gave it to her at a family function. At her first reaction, I thought maybe she didn't care much for it - she thanked me, turned away and started talking to someone else. But at a later date, when we were alone together, she told me she loved it very much, it's one of her most treasured possessions. She had turned away because she was so overcome with emotion and didn't want to break down in front of everyone.
Pattern is Double Takes 4 by Anka's Treasures. Every fabric in the top was a shirt Grandpa wore for years, even the white sashing strips, the small navy diamonds, and the binding. I used navy minkee on the back for the snuggle factor. Size is generous lap. Grandma shows it off to every new resident when they arrive at the wrinkle ranch where she lives.