It may be helpful to communicate with your team prior to the event to decide which prototyping tool you will be using. Some popular options are listed here.
Other UX Resources:
Feel free to use these resources to help inform your design decisions.
An Introduction to User Experience (video)
Adobe – UX 101: A Basic Project Checklist
Zeta Design – UX 101: The Forgotten Class
Hack Design – Design Lessons
Dash Burst – UX 101: What is User Experience?
Nielsen Norman Group