This website turns any document camera (Your Elmo) or webcam into a answer sheet scanner. The free version only allows the answer sheet to have up to 10 questions but it scans and grades them instantly! My first thought was super fast formative assessments and a great way to practice bubbling questions for those state tests!
Pros: Creating an account and setting up classes is super easy! Student accounts can quickly be created by using Excel and creating a CSV file. Then import the file into GradeCam.
Cons: It's only free for a trial period and then it's $10 a month. However, if you get others to sign up then you get 3 months free. Schools can also request a 3 month pilot