Picture of How to make a slump Mold for Ceramic hand building
 The slump mold is a great way to make bowls without using a pottery wheel or using the pinch-pot method. The molds are super super easy to make and well worth the time.

Step 1: Materials neeeded

Picture of Materials neeeded
You will need:
Pottery plaster. It HAS to be ceramic grade, otherwise it will dissolve in water very easily. (please wear a NIOSH mask when working with dry plaster. Avoidance of lung cancer is so very worth it...), 
A non-important bucket,  
The objects you want to make the mold from (must be flexible plastic, unless you want to cut it up to get your mold out),  
A scoop,  
A spray bottle of vinegar (not pictured),  
A scale,  
Something to stir your plaster with.

scoochmaroo5 years ago
What do you do with this?
skeletal dropkick (author)  scoochmaroo5 years ago
 You use it for hand building with ceramic clay. check out my next instructable to see... :)   www.instructables.com/id/How-to-use-your-slab-roller-and-slump-mold-to-make/