he/him/his/himself/himself

• This morning, (he) went to the park.
• I went with (him).
• And he brought (his) frisbee.
• At least I think it was (himself).
• By the end of the day, (he) started throwing the frisbee to (himself).

they/them/their/theirs/themself

• This morning, (they) went to the park.
• I went with (them).
• And he brought (their) frisbee.
• At least I think it was (themself).
• By the end of the day, (they) started throwing the frisbee to (themself).

star/star/stars/stars/starself

• This morning, (star) went to the park.
• I went with (star).
• And he brought (stars) frisbee.
• At least I think it was (stars).
• By the end of the day, (star) started throwing the frisbee to (starself).

pup/pup/pups/pups/pupself

• This morning, (pup) went to the park.
• I went with (pup).
• And he brought (pups) frisbee.
• At least I think it was (pups).
• By the end of the day, (pup) started throwing the frisbee to (pupself).