Gather shavings and scraps that have been leftover from other projects. If that's not enough, find your oldest, driest clay.
Time to smash! You want to break the slabs into pieces that are about the size of a coin.
Next, put the clay scraps and pieces into a bowl or bucket. Leave the clay in the water for 30 minutes to 60 minutes to soak.
Next, I’d grab an old kitchen hand mixer to blend the water and clay together. The consistency of the slip should be on the thicker side.
The next step I take if I’m planning to use the slip for decoration is straining the slip to get it buttery smooth.
Last step: Storage. You’ll need a container with an airtight lid. I will either use Tupperware if it’s not that much volume or get a bucket with a lid if it’s a lot of volume.