Paper marbling in the backyard

I'm teaching a marbled paper workshop on Saturday at UCLA and figured I'd better practice. I haven't done it in awhile.

Here's the set up. It's far too messy to do it in my pristine studio. There's carrageenan in that tray, the size that you float the color on.

Here's the paint floating on the surface of the carrageenan size. This is the stone pattern. You just splatter paint all over the place.

Here's a closeup of the stone pattern on the paper after it's been pulled.