"What wobbles when it flies?"/"A…

Jelly wobbles, but it usually doesn’t fly like a helicopter. A popular food riddle is:

Q: What wobbles when it flies?
A: A jelly-copter.

The “jellycopter” joke has been cited in print since at least 1974.

“What do you get if you cross a sheepdog with a jelly?”/“The collie-wobbles” is another jelly riddle.

3 February 1974, The Sun-Herald (Sydney, Australia), comic sec., pg. 6, col. 4:
Q. What wobbles when it flies?
A. A jelly copter.
—Lili Grant (13), Concord.

31 August 1974, Piqua (OH) Daily Call, The Mini Page, pg. 3, col. 1:
Q. What flies through the air and wobbles?
A. A jelly-copter.

Google Groups: rec.humor
What is red…
Susanne Blasmann
8/12/91
What is red and wobbles through the air??
A raspberry jellycopter.

30 June 1992, The Daily Telegraph (London, UK), “The Arts: Taking the kids down to Earth” by Lewis Jones, pg. 14:
Q: What wobbles and can fly?
A: A jellycopter.

Google Books
The Father Christmas:
It’s a Blooming Terrible Joke Book
By Raymond Briggs
London, UK: Puffin Books
1994
Pg. 69:
What flies and wobbles?
A jellycopter.

17 January 1996, Daily Mirror (London, UK), “Being a blonde, I can’t type or cook .. but men can find me in the dark; Inside the whoopee cushion world of Jenny Eclair” by Carole Aye Maung, pg. 4:
“She suggests jokes like: ‘What wobbles and flies? A jelly- copter’ - which I’ve never used.”

Google Books
Food Jokes
By Hugh Moore
Edina, MN: ABDO Publishing Company
2005
Pg. 20:
What wobbles when it flies?
A jelly-copter!

Twitter
rashbre central‏
@rashbre
#crapcrackerjokes what wobbles and flies? A jelly-copter
8:57 AM - 24 Dec 2008

Twitter
Rebbie McGee‏
@chatterbear
Replying to @Popjustice
@popjustice what wobbles and flies? a jellycopter.
5:03 PM - 12 Feb 2009

Twitter
Aaron Fever‏
@AaronFever
What wobbles as it flies?
A jelly-copter.
#rednoseday
6:19 AM - 13 Mar 2009

Twitter
Owen Blockchain ✊‏
@c3iq
What wobbles in the sky? A jellycopter. Peppa Pig.
2:05 PM - 19 Feb 2011

Twitter
MollyMoo | Michelle‏
@MollyMoo_ie
“what goes wobble, up the sky?”...... “a jellycopter” (we have Peppa Pig to thank for that nugget)
1:12 PM - 20 Nov 2011

Google Books
New Jokes4Kids Joke Book
By Paul Gwilliam
Lulu Press (Lulu.com)
2013
Pg. ?:
What flies and wobbles?
A Jellycopter.

Twitter
Nora Lyons‏
@BostonRacerGirl
@karsonwithak @RomanwithaUK : What wobbles in the sky? A jelly-copter! (Stolen from Peppa Pig)
11:45 AM - 21 Apr 2013

Twitter
Ronnie MacNiven‏
@acoustictourist
Q: What wobbles and flies?
A: A jellycopter #BadJokeFriday
10:55 AM - 3 Nov 2017

“What wobbles when it flies?”/“A jelly-copter.”