[header] How to make erasers [title] Buy eraser clay. [step] Look for crafting clay specifically designed for use in creating your own erasers. This special molding material comes in a variety of colors and kits, available in most craft stores. 
[substeps] Try brands like sculpey or creatibles for easy-to-find eraser clay in a variety of colors, and even some that come with sculpting tools. Eraser clay is made with a special type of polymer clay, which doesn't harden completely when cooked.