How to join in1) Take a photo to start with. Somewhere great.
2) Create a palette from the colours in the photo. (You can do this by eye or you can use something like Degrave's Color Palette Generator or http://www.play-crafts.com/blog/palette-builder/ - there are a number on the web -or Adobe Ideas for Ipad.)
3) Pick a selection of fabrics which match the photo palette (name it if you like).