Here are some example sentences using my they/them pronouns:
They went to the park.
I went with them.
They brought their frisbee.
At least I think it was theirs.
They threw the frisbee to themselves.
Here are some example sentences using my ae/aer pronouns:
Ae went to the park.
I went with aer.
Ae brought aer frisbee.
At least I think it was aers.
Ae threw the frisbee to aerself.
Here are some example sentences using my he/him pronouns:
He went to the park.
I went with him.
He brought his frisbee.
At least I think it was his.
He threw the frisbee to himself.