These are a few useful links related to Mechatronics and Robotics. These links can be fruit for thought; you can have a look at these projects to get ideas for your projects.
Carnegie Mellon University - Robotics Institue
Australian Center for Field Robotics (ACFR) - University of Sydney
Institute of Robotics and Intelligent Systems (IRIS) - ETH Zurich
Field and Space Robotics Lab - MIT
Robotics Research Group - Stanford
[More to be added soon. Suggestions about more cool links are welcome.]
Remember:
"Good ideas are common - what's uncommon are people who'll work hard enough to bring them about" - Ashleigh Bright