you can us modeling clay or news paper with clay stuff on top.
Do a little research and buildi suggest styrophone
It depends where you live. A model typically earns $36,420 in the United States. This makes it lower paid than most sales workers.
You can get the supplies at a convinience store all you need is baking soda, vinegar, glue (or anytype of paste) and newspaper
There made in Serbia and assembled in America, do know that.