What you see on TV is entirely fictionalized. Nothing like what happens in Castle or Bones or The Mentalist happens in real life. Any remotely competent defense attorney would tear apart a case where an untrained civilian did half of the investigative work, handled evidence, etc. And that's not even counting putting a civilian in the line of fire on purpose.
This is an example of Art Imitates Life but that's not the TVTrope link you need.
This is the TVTropes link you deserve Object Ceiling Cling
Basically, in storytelling, it's a comedic effect to have things stuck in the ceiling and maybe fall after.
However, there are specific pencil references in that link:
An episode of Coach featured Luther ...
According to this article, the authorship of the Richard Castle books is not clearly revealed. However, certain clues lend credibility to the fact that Tom Straw, a published mystery crime writer, is responsible for them.
Farther down, in the list of comments, is this one.
November 15, 2014 at 7:57 am
By the way, Nathan at Comic ocn [sic] confirmed ...
Here's a bunch.
Yes, it's a short answer, but this is probably what the OP was after. It's not complete but it's certainly fun. I did not transcribe the link because it's been around over two years and I don't anticipate it being gone anytime soon. If anything, I hope it's updated. Also because I haven't watched Castle and do not care to research where ...
I would consider this to be a subtrope of the fairly common Wacky Parent, Serious Child:
A pair that consists of a silly, carefree or simply lighthearted parent and a child who is down to earth, snarky, brooding or all three. Usually parent and child will be of the same gender (so a wacky father with a brooding son or a ditzy mother with a serious ...
As of this writing (11.21.2013, or 21.11.2013 for our European visitors), there isn't a definable meaning available. Most blog posts and references that I can find speculate in one of two directions:
Mother - It's related to her mother, and that is why she looks so shaken.
Recurrence - It's a thinly veiled allusion that a serial killer has returned, and may ...
As Tom has said, it meant that either:
3XK is around.
It was speculated that the song had a profound meaning to Beckett (related to her marriage / mother) that 3XK knew about.
Unfortunately we never got around to explore these two cases.
If you look on Tom Straw's website, it says the following:
TOM STRAW published his first mystery novel, The Trigger Episode, in 2007. Subsequently, writing as Richard Castle, he authored seven more crime novels, all of which became New York Times Bestsellers. Buzz Killer is Tom Straw’s first book under his own name since that blockbuster Nikki Heat series....