http://www.youtube.com/watch?v=bXjbMIZzAgs

Christmas Lights synched to fully functional Guitar Hero?
Awesome!

Source: Kotaku

http://www.youtube.com/watch?v=9AYgBIiFHZI

Well, there you have it! Super Nintoaster II.

Source: TechEBlog

http://www.youtube.com/watch?v=8palgXO3yw4

It even has mario footstep sounds!
I think the only thing this needs, though this probably goes way over the capabilities of modding, a barrel launcher for the defending team, some sort of powerful weapon to replace the hammer, and background music.
Still, an amazing work that goes several steps above your usual tribute mod!

Source: Halolz

http://www.youtube.com/watch?v=7PFNILRWz4Y

Megaman: 8-bit Deathmatch is a cross over between classic FPS Doom, what seems to be a Quake engine and classic 8-bit NES platformer Megaman.
But not only that, it also implements deathmatch mode featuring tons of classic megaman characters in a brawfest!
Very awesome!

Source: Kotaku

http://www.youtube.com/watch?v=DZAaKH0FYO8

For greater effect, you should watch the TubeDubber or YoutubeDoubler mix version with Back to the Future’s soundtrack, as pointed out by the owner!
Even has the car sounds and stuff… loved it!
Mod is available at CryMod’s post for DeLorean Time Machine.

Source: TechEBlog

http://www.youtube.com/watch?v=8o00ha17Jic

World War 2 fiction, the axis is using dinossaurs as weapons agains allies!
Kinda confusing, but basically it means you can play this mod for free if you have Half Life 2, and can expect for a full story with full game with Dino D-Day as a part of it next year.
Designed by Abe Scheuermann, you can check more info on it at ModDB’s official Dino D-Day post!

Source: IndieGames

http://www.youtube.com/watch?v=6efDVkmI5pc

Apparently, it could even help mutes or furries who don’t know the human language to express it’s feelings…
Created by Wei-Chieh Tseng, seems to be based on a cat’s tail (judging by the reactions), and it uses a Wii Nunchuck, RFID cards and other tech gadgetry.

Source: Kotaku

http://www.youtube.com/watch?v=v-QW047Q_5Q

Created by DoritoClock from the L4Dmaps community, this very awesome map reproduction of Super Mario Bros. 64 is available for download at the official Mushroom Massacre post at L4Dmaps forum

Source: Kotaku

http://www.youtube.com/watch?v=R1AzailvJB0

The iPhone ARider is a bike helmet mount with HUD display to help you navigate using the iPhone’s GPS.
I imagine though, having a standard GPS mount on your bike handle would be a far better solution, and it probably wouldn’t be as accident prone as having a HUD popping in front of your eyes… but maybe it’s just me.
Nonetheless, I’ll wait for helmets with Augmented Reality visors.

Source: Gizmodo

http://www.youtube.com/watch?v=Y6kECR7T4LY

But Big Mouth Billy Bass just got even funnier, with Steve Ravet and crew modding it to reproduce Twitter updates!
The mod started with being able to insert an SD card with .wav files, made by Dan Ros. The result you see on the video above.
But then, the mod evolved and a voice synth was added so the fish could speak Twitter updates!
Now it won’t shut up! Just kidding…
Anyways, you can check more info about it at mbed @ ESC Boston homepage.
Back to the video, I could identify Homer Simpson, Bill Clinton, George Bush and several Monty Python quotes (inexplicably missing the surreal Find the Fish sketch). Awesome!

Source: Gizmodo