Hey,
It isn't black but maybe you can order it in a specific color or locate it online. Also, I based it on the model year I have, but hopefully this will help direct you further.
But on the Four Winns part website they show the following item #071-233 as a 'Clip, Shock Cord White'. The website also states it is valide from 1999 thru today.
http://www.fourwinns.net/partbook/basem ... l=200H-A07 Access Canvas Hardware section, then Canvas Assembly Hardware and the option is within that section.
Hope this helps,
Matt