Only seen in early screenshots and not seen anywhere in Unreal. Here are the Dragons from Unreal Beta in papercraft form! Check the wiki for some in-game shots: https://tcrf.net/Proto:Unreal/Build_0.864v#Dragon

and in this video at 2:18:

>> Download Unreal Beta Dragon Papercraft Templates here <<

Files included:

PDO file
Textures (I edited a green skin as well)
Readme

PDO files can be opened with Pepakura Viewer/Designer

Tips
- Hover over a flap in Pepakura to see which part is connected to another.
- You can resize the papermodel (Pepakura Designer only) by going to the 2D Menu->Change Scale->Scale Factor.

Step 1: Materials

Material list:

Aleene's Tacky Glue (can be found at Pipoos)
Cutting knife/scissors
Cutting mat
Black marker
Tweezers (optionally)
Paper
Printer
Needle and thread if you want to make the flying dragon hang

Step 2: Print, Cut Out and Glue

Print out the patterns and cut them out with your scissors or cutting tools.
Fold the parts. You can use a ruler to make clean folds.
Use a black marker to hide the white of the paper thickness.
Glue the corresponding parts together. (I recommend: "Aleene's Tacky Glue")
If you want the flying dragon to hang then put some thread through his back and make sure it is correctly balanced.

Some papercraft tutorials: