My sister would like to make a quilt for her adult son and is looking for quilt patterns that depict the ocean, working on the ocean as a sailor, or something with a maritime theme that is suitable for a grown man . If you know of such a pattern, please let us know here on the forum.
This is an example of how any picture or card can be turned into a quilt pattern:
I got this card from someone years ago and loved the picture. I photocopied it, cut out all the shapes (like the black shapes on the cows, the white shapes, etc.) and enlarged each piece. I used those enlarged pieces for my patterns and put it all back together in fabric, like a puzzle. This is a wall hanging -- but, the same method can be used for a quilt.
Walk in Peace and Harmony. Phyllis Doyle Burns Avatar: Fair Helena by Rackham, Public Domain