“What’s white and goes up?”/“A confused snowflake.”

A winter riddle is:
   
Q: What’s white and goes up?
A: A confused snowflake.
 
The joke has been cited in print since at least 1977.
 
   
11 January 1977, Los Angeles (CA) Times, You sec., pg. 2, col. 2:
The Beastly Riddle Calendar by Jane Sarnoff and Reynold Ruffins. Hundreds of riddles, five holiday postcards to mail to friends, e.g., “What’s white and goes up? A confused snowflake.”
   
25 October 1995, The Post and Courier (Charleston, SC), “Mighty Funny’s Mini Jokes,” The Mini Page, pg. 4, col. 2:
Q: What’s white and goes up?
A: A confused snowflake.
   
The Telegraph (London, UK)
Top ten worst Christmas cracker jokes ever
By Natalie Paris 2:01PM GMT 19 Dec 2007
(...)
4. What’s white and goes up?
A confused snowflake.
 
Twitter
Rax Lakhani‏
@RaxLakhani
#crapcrackerjokes What’s white and goes up?
A confused snowflake.
8:11 AM - 24 Dec 2008
     
Google Books
Christmas Crackers
By Matt Wilce
Lulu Press (Lulu.com)
2012
Pg. ?:
What’s white and goes up?
A confused snowflake.
 
Google Books
Ho-Ho-Ho Christmas Jokes to Tickle Your Funny Bone
By Amelia LaRoche
Berkeley Heights, NJ: Enslow Publishers, Inc.
2013
Pg. 30:
What’s white and goes up?
A confused snowflake.
     
Google Books
Gigglers: Christmas Jokes
By Toby Reynolds
London, UK: Scholastic Fiction
2015
Pg. 68:
Q. What’s white and goes up?
A. A confused snowflake!
 
Twitter
🏇MARK‏
@westy2112
What’s white and goes up?
A confused snowflake.
#wednesdaywit
1:29 PM - 6 Dec 2017