Ha! Faked you out! This is a knitting post. Sorry. You may be excused.
"Clapotis" means lapping in French, as in the lapping of the waves on the shore. Weird and kind of repulsive word, actually. The French pronunciation helps: cla-po-TEE.
Anyway, it's a wildly popular shawl pattern among knitters. Ravelry.com (the Facebook for knitters) counts 6400 versions of it. Really.
Here's my clap in progress, using Noro Silk Garden 264:
It's an easy pattern, but very daunting, as there are a million blog posts, forums, discussion threads, and spreadsheets on it. This is the spreadsheet I'm following (with thanks to Soul Knitting):
I'm showing it to impress you. The pattern is actually pretty easy to memorize.
Seriously, don't be intimidated. If I can do it, so can you. Of course, mine isn't done yet ...