I might have the last pattern and instructions for making your own Jordan series drogue. It's old, the paper is starting to get brittle, but until I get the energy to redo the pages, it's usable. And by posting it on the Net, it won't disappear.
There's now a link to it in my Cruiser's Dictionary at http://www.cruiser.co.za/faq2.asp
scroll down to "Drogue" and you'll see the "download HERE" link.
Making the cones and attaching them to the line is fiddly, but it is piece work you can do a few of whenever you've got a spare few minutes.
You can now download a free, full copy (PDF) of "The Cruisers Dictionary
" - Download link