This presentation was recorded prior to re:Invent. Science, technology, engineering, and math (STEM) educational toys as a subscription-it started as a program manager's dream about selling to Amazon.com customers, and it took seven months and four engineers working in a serverless environment for this dream to come to fruition. This serverless solution has scaled to support hundreds of subscription businesses both within and outside the company, with minimal operational engineering costs. In this session, learn how this small and scrappy team was able to quickly deliver STEM education to its customers using a simple and well-designed serverless approach leveraging Amazon API Gateway, AWS Lambda, Amazon DynamoDB, AWS CloudFormation, and Amazon CloudWatch.