Hey all,
Awhile back, I discovered these very useful scripts, for generating body tube "fin guide wraps"; and for generating paper/cardboard transitions. Simply edit these Post Script files (in your favorite simple text editor), to give them the desired dimensions; and print the new .ps file on your printer. These scripts are very well documented, and very self explanatory.
Now, I did not create them; but I also do not have the original web address from where I discovered them; so I have uploaded them to my own webspace. A fine gentleman by the name of Matthew Stum is the creator of them.
But, anyways...here they be: