“What do you call a snowman on roller blades?”/“A snowmobile.”

A winter riddle is:
 
Q: What do you call a snowman on roller blades?
A: A snowmobile.
 
The joke has been cited in print since at least 1998.
 
         
December 1998, Ranger Rick, “Reader riddles,” pg. 8:
What do you call a snowman on roller blades?
A snowmobile.
Grace Johnstone; Visalia, CA
   
Google Books
Penguin Pocket Jokes
By David Pickering
London, UK: Penguin Books
2006
Pg. ?:
What do you call a snowman on roller blades?
A snow mobile.
 
Twitter
Henry‏
@HenryWhitfield
RT @Ohknow What do you call a snowman on roller blades? A snowmobile! #uksnow
7:21 AM - 16 Dec 2009
     
Twitter
ashley alexandria‏
@mmmhmitsashley
What do you call a snowman on rollerblades? A snow-mobile! Bahahahahaha :D
7:05 PM - 24 Dec 2009
 
Twitter
The Little Helper‏
@FreeSantaLetter
Santa Joke of the Day
Q: What do you call a snowman on roller blades?
A: A snowmobile!
11:28 PM - 30 Nov 2010
     
21 December 2010, Brooks (Alberta) Bulletin, “The Tilley Telegram” by Anita Chappell, pg. A6:
What do you call a snowman on roller blades? A snowmobile!
   
Google Books
Christmas Crackers
By Matt Wilce  
Lulu Press (Lulu.com)
2012
Pg. ?:
What do you call a snowman on roller blades?
A snowmobile!
 
10 December 2013, Birmingham (UK) Mail, “You’re joking!,” pg. 32:
What do you call a snowman on roller blades? A snow mobile!
   
Google Books
What a Joke!:
For Kids of All Ages
By Marlize Schmidt
Lulu Press (Lulu.com)
2014
Pg. ?:
Q: What do you call a snowman on rollerblades?
A: A snowmobile.
 
Reddit—Clean Jokes
What do you call a snowman on roller blades? (self.cleanjokes)
submitted December 22, 2017 by madazzahatterQuality “Ugh” Contributor
A snowmobile.