First, get an action figure. I used a Vilgax from Ben10.
Next, get parts and pieces from other toys. I got all of mine from Ben10 figures. I got the head from Ultimate Humongasaur, tail from regular Humongasaur. Also parts of SixSix' arms. I also found wings from Swampfire's Dragon.
Other materials used are cardstock I found on the back of a sprial notebook, and blue masking tape.
Step 1: Head Swap
Step 2: Make Arms Longer
Step 3: Add Wings
Step 4: Attach Tail
Step 5: Make and Add Horns
Tape them to the back of Ultimate Humongasaur's head.
Step 6: Cover With Blue Tape
Step 7: Play or Display
The Ultimate Dragon is now complete. I would recommend for you to put your custom figure on display. It is very easy to break it especially at the arms or tail because the tape just isnt very strong or bendable.
Especially don't let children under 3 years of age get a hold of this because they could easily break it and it has lots of small parts they could choke on. Take my word, I have the experience because of my little brother because he's broken a few of the things I've made already.
I hope you make your own figure and have fun.