This is how I made Lungs that go with the word pneumonoultramicroscopicsilicovolcanoconiosis for Ligaments and Ligatures:
Start with trolling the internet for nice lung photos
Make a sketch:
Make a wire frame and wrap it with foam and rope.
Enjoy the colour combinations of beige, burgundy and dusty rose. Wrap it up. Wrap Everything.
All wrapped up:
Still need to play around with the avioli drapping and the lobe shape,
but otherwise things are looking pretty pretty