Grandkids---Do you have a name?

Hi, Mason, Luke, Isis, Natalie, Lily, Mabel & Pheonix....Does anyone have a name for my new pet. He is in the back yard and loves to hop in the grass. I saw him a week ago and again today...wow has he grown since I took this picture! I hope I don't get warts from him because he has warts all over him. Love, Grandma