Melamine foam - Wikipedia, the free encyclopedia
Amazon.com: Pack of 30, MAGIC SPONGE ERASER CLEANING MELAMINE FOAM CLEANER, ECO-FRIENDLY 100% BASF MATERIAL MP30: Health & Personal Care
The stuff Magic Eraser is made from - it is cheaper if you just buy it as Melamine Foam.
Melamine foam - Wikipedia
Magic Erasers are actually made of Melamine foam, so if buying the brand strains your budget, you can use the generic foam with a homemade cleaner.
RioRand Jumbo Magic Cleaning Eraser Sponge Melamine Foam High Quality 110 X 70 X 30mm (Pack Of 50)
HowStuffWorks "How do magic erasers get rid of stains?"
Melamine foam (Magic Erasers) in bulk. Way cheaper than getting them at the store.