Did this a few months ago.
Name: David Turnbull
Species: border collie
Nickname: None. Just 'David'. Not 'Dave' or 'Davey'.
Nickname he gets called out of earshot: 'Snoopy'
Achievements: As stated, best trumpet player in his grade.
Also 7th grade class secretary. Thought about running for class president, but secretary fit his tendency to be...organized.
Likes: Basketball, being bossy (in the words of some kids who aren't him), track & field, swimming, band...Can't remember the rest. It's a long list.
Dislikes: Sitting around doin' nuffin'.
Trivia: Has a tendency to end up 'team captain' of most things in gym. Can play a mean 'I Ran' on guitar. Is an enthusiastic armchair UFC enthusiast. In fact, he's a referee here: http://www.furaffinity.net/full/9232072/