After looking over the topics I wanted to address and my rough ideas I found a few ideas to narrow down on. (Note: parts in bold are topics that will be implemented if time allows and the project does not become more than what was previously expected.)
For one independent project I still like the idea of using the temperature sensor, Ethernet connection, the GPS time, and the GPS position. I would like to set this up so that the device will read the temperature of wherever you are and post it to social media. My plan is that the post will include the time and location and a little message depending on the temperature, such as if it is warm out it could say something about wearing shorts today. One useful way to do this would be to have it read the temperature all the time and then upload it when plugged into the Ethernet. That way it could be taken with some one and not be as stuck in one place. This would require a battery to keep power going to the device. I also think it would be a good idea to set it so that it will post the temperature at a designated time in the morning. In other words at like 9 am it would check and post so if you check your feed you will know what temperature to expect.
Next I would like to use the triple-axis accelerometer and a DC motor to create a small little device that will move forward or backward depending on how the accelerometer is moved. I would most likely add a shift registor to this project to add LEDs to make the device look nicer and fancier. If time and my skills allow I could also use a servo motor to attached to the DC motor wheels so it can turn. This will depend if I have the ability to design an appropriate design.
For the final I am planning on sticking with the game idea. I would use the LED matrix for the display of the game. Right now I am considering a game like Snake, but we will have to see what I am capable of coding on the device. I would also plan to use the Ethernet so that the player can post their score to social media if they want. I could include the GPS position so it says where the player is, but given that social media usually states where the poster is at the time, this may be redundant and not included. I think using the Piezo buzzer or speaker to play a little tune during the game would be a good idea as well. Also, though it was not initially on my topics list, including a LCD display could be good so the viewer sees their score before they decide to post it. I may be able to do this on the LED matrix too, we will see.