Elastic Beanstalk provides a really simple way to create queue-based workers. Their worker tier allows you to define a web interface that handles each event. Elastic Beanstalk handles the details of reading from the queue and posting the data to the worker, so all you have to do is hookup one webg endpoint that handles the processing.
Simply build a simple web app to handle posting to a single endpoint, deploy to a worker environment, then put test events in the queue using the AWS CLI's SNS interface. It works best for short running jobs (less than a couple minutes).