Graphene draws considerable attention in science of new materials due to its outstanding properties. However, there are not many international companies that have it on their sales list – on world flee market eBay there are only two sellers that sell single layer CVD graphene with average price of 40 USD/cm2. “Graphene supermarket” company, with its big inventory list, have average price of 10 USD/cm2. Average cost of production, estimated at 1 USD/cm2, opens a question: Can you make money by doing science? In this talk I will present complete buildup process of low-cost do-it-yourself CVD reactor for graphene synthesis with all steps firmly explained. Majority of construction parts were bought of-the-shelf in local domestic supermarkets. Raman spectrum of produces samples confirms high quality single layer graphene with low concentration of defects which is suitable for use in scientific research.