“If you fail your kindergarten coloring book exam, you need a shoulder to crayon”

The expression “a shoulder to cry on” is often changed to the pun “a shoulder to crayon.” “I’m really upset that I can’t find a body part to draw, I need a shoulder to crayon” was posted on Twitter on September 24, 2010. England-based graffiti artist Banksy used “A Shoulder to Crayon” as the theme of his one-month artist’s residency in New York City in October 2013.
   
“Children who fail their coloring exams always need a shoulder to crayon” is a jocular one-line saying that was on the website Pun of the Day and was also posted on Twitter on October 26, 2016.
   
   
Twitter
Jim.Richards
‏@Jim_Richards
I’m really upset that I can’t find a body part to draw, I need a shoulder to crayon. #win100
5:39 AM - 24 Sep 2010
 
Twitter
Stephen Holford
‏@SteveSunshines
My little nephew was upset as he had no paper to draw with.
So I gave him a shoulder to Crayon
10:25 AM - 9 Mar 2012
 
Twitter
GlennyRodge
‏@GlennyRodge
My butcher’s great. He just comforted me after finding out I lost my colouring-in book. He gave me a shoulder to crayon.
9:55 AM - 26 Sep 2012
   
Daily News (New York, NY)
Graffiti artist Banksy gives new meaning to ‘spray’ painting at latest Chelsea installation
BY BETH STEBNER
Thursday, October 3, 2013, 3:30 PM
(...)
Elusive graffiti artist Banksy debuted his third work of the month on Thursday in Manhattan’s Chelsea neighborhood.
(...)
The newest part of Banksy’s one-month artist’s residency, called “All I Ever Wanted Was a Shoulder to Crayon,” was tagged by other street artists within hours of its completion.
 
Twitter
BOOKSA
‏@BOOKSAhr
“All I ever wanted was a shoulder to crayon.”                    Banksy, from his current NY residence days, http://www.banksyny.com/
11:47 AM - 9 Oct 2013
 
Twitter
Tim Miller
‏@brasseye
My friend who does cartoons of motorways was telling me how depressing the monotony of his job is, so I gave him a hard shoulder to crayon.
8:21 AM - 12 Jan 2015
     
Twitter
Chris Morris
‏@BurrowDweller73
@KimberleyHAC You should go to a tattoo parlour and say “I don’t want a permanent tattoo, but I’m here if you need a shoulder to crayon.”
5:06 PM - 5 Jan 2016
 
Twitter
Just another Jokes
‏@factjokes
Children who fail their coloring exams always need a shoulder to crayon. Comment On This Pun!
2:09 AM - 26 Oct 2016
 
Twitter
Puns by Mum
‏@MumPuns
If you fail your kindergarten colouring book exam, you need a shoulder to crayon. #puns #punsbymum
8:08 AM - 8 Nov 2016
 
Twitter
Christopher Jobe ن‏
‏@sharky67
Pun of the day:
Children who fail their coloring exams always need a shoulder to crayon.
6:07 AM - 9 Jan 2017
   
10 January 2017, The Advertiser (Adelaide, Australia), “The Last Word” by Marty Smith, pg. 20:
Wordplay: Children who fail their colouring class always need a shoulder to crayon