Slump, hump molds are a great asset to any studio.  Once you understand the process the variety of results are up to you and your imagination. Slump hump molds are different for slip casting molds.  The basics are that in a slump mold you press your clay into a form and a hump mold you press over an object.  Actual you can use any  object for slump, hump old as along as there are not any undercuts and the object can release.  An object of bisque ware or plaster may be least frustrating for those who are just starting out working with slump hump molds.   I have used the slump/hump maker molds from Pure and Simple Pottery.  They are a reusable system to make a variety of slump hump molds.  Here is Brackers Clay demonstrating    Making a Pure and simple mold on You Tube   I have used mid for years. Here is a  You Tube Video from The Ceramic Shop using a hump mold on the wheel  Another use is making a slump mold to recycle clay.  The potter John Britt does as seen in this video John Britt recycling clay.  

Another company that makes molds are GR pottery Forms. use the link.  Check with your local pottery Supplier for the molds they may have available Use the link to go to their website The Ceramic Shop.  

I hope you found this useful and start exploring hump slump molds on your own. 

As always questions or comment use this link to my  contact page