10 well known pen makes

1. Parker
2. Lamy
3. Pilot
4. Staedtler
5. Waterman
6. Paper Mate
7. Faber-Castell
8. Montblanc
9. Uni-ball
10. Sheaffer

10 Fictional Parkers

1. Parker Ruthless criminal character created by Donald E Westlake writing as Richard Stark and portrayed in more than 20 novels

2. Parker The butler in Lady Windermere's Fan by Oscar Wilde

3. Aloysius Parker Butler to Lady Penelope in Thunderbirds

4. Peter Parker Alter ego of Spiderman

5. Richard Parker Name of the tiger in the novel Life of Pi

6. Charlie Parker Private detective created by John Connolly

7. Kai Parker Character played by Chris Wood in The Vampire Diaries

8. O E Parker Character in a short story by Flannery O'Connor called Parker's Back

9. Nikki and Kim Parker Main characters in an American sitcom The Parkers that ran 1999-2004

10. Phil Parker Part played by Jimmy Nail in his TV series Parents of the Band

10 People surnamed Parker

Not sure why this came to mind

1. Matthew “nosey” Parker Archbishop of Canterbury who died in 1575
2. George Safford Parker American founder of the pen company
3. “Colonel” Tom Parker Elvis Presley's manager
4. Dorothy Parker American fiction writer
5. Gloria Parker American musician and bandleader
6. Charlie Parker American Jazz saxophonist
7. Ray Parker Jr American musician
8. Alan Parker English film director
9. Graham Parker English singer songwriter
10. Sarah Jessica Parker American actress