I show all of my puzzles on youtube here:
http://youtu.be/-BjyzTBF_BA
Here are the ones you were wondering about. From Right to Left:
Gear Cube:
http://youtu.be/CyDe4oT4bAk
Mosaic Cube:
http://youtu.be/Ni4om-UdeGU
Gear Cube Extreme:
http://youtu.be/h1eFsej8S8M
Skewb Cube.
Helicopter Cube:
http://youtu.be/v-dfk-q6Q0k