You can use whatever media you want to create the image, but it has to fit the "joint" specified by the host: for example, if you are drawing an arm, it needs to join up properly to the shoulder. Ideally, you will draw your body part over the joint to make sure there are no unintentional "seams".
In addition to providing the template for the character, the host can also apply some restrictions on the nature of the body parts. If, for example, they all have to be human, then it would be no good drawing a mechanical arm. I will start by specifying a very basic template, with no detail on the joints - a starting test to see how it rolls, and it can be adapted from there.
Before posting a template, I will get people to "reserve" the body parts they want to draw, so that everybody can start at the same time. The body parts will be:
- Head
- Torso/Abdomen
- Left/Right Arm
- Left/Right Leg
The categories that contain slashes can be split between two people if there is enough interest.