system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] What if the person who gets a Green Lantern Ring doesn't have fingers?

Or anything to put that ring on.
gpt
There are countless different alien species within the Green Lantern Corps, from beings such as a whole planet, to little bacteria. Not all members of the GLC have fingers. The ring is able to adapt to the biological aspect of their wielder.The ring is able to change its size depending on the wielder and their form. Because of the various species of GLC members, not all rings are the same size.

If a person wouldn't have a single finger, the ring could appear as an armband. If they had no arms then the ring could appear around their neck or waist. 

If a person is worthy of wielding the ring, then the ring will be wieldable by them.