To stamp with ink you need an empty stamp pad for each colour. It is impregnated with paint. Then carefully wet the stamp with the ink pad. Then it's on. It's best to do a test on paper before it gets serious. It's fun and easy as pie. Please don't forget to wear gloves.
Please see the stamp tutorial . Please store the filled cushions dry and airtight. The ink is very economical. It's best to do a test on paper before it gets serious.
What you also need : Stamping ink , either waterproof and permanent or for erasing for blackboard writing.