“My favorite machine at the gym is the vending machine”

“My favorite machine at the gym is the vending machine” is a jocular one-line saying that has been printed on ecards. The line has been cited in print since at least 2002, when it was credited to Canadian stand-up comedian and actress Caroline Rhea.
 
         
Wikipedia: Caroline Rhea
Caroline Gilchrist Rhea (born April 13, 1964) is a Canadian stand-up comedian, actress and model who was the original host of the reality television show The Biggest Loser on NBC until she was replaced by Alison Sweeney after the end of Season 3. She is also known for her role as Hilda Spellman from Sabrina, the Teenage Witch, and for replacing Rosie O’Donnell as the hostess of her syndicated talk show, renamed The Caroline Rhea Show. Rhea provides the voice for Linda Flynn-Fletcher, the mother of Phineas and Candace Flynn and stepmother of Ferb Fletcher, on the Disney Channel series Phineas and Ferb.
 
Google Books
How the Queen Cleans Everything:
Handy Advice for a Clean House, Cleaner Laundry, and a Year of Timely Tips

By Linda Cobb  
New York, NY: Atria Books
2002
Pg. ?:
Caroline Rhea
“My favorite machine at the gym is the vending machine.”
 
Google Books
Wit and Wisdom of Women:
Classic and Contemporary Quotes

Edited by Todd Hafer
Kansas City, MO: Gift Books
2006
Pg. 121:
My favorite machine at the gym is the vending machine.
Caroline Rhea
 
Twitter
Wes Fish
‏@idibs
My brothers favorite machine at the gym is the vending machine.
12:45 PM - 13 May 2009
 
Twitter
Madeline
‏@DillardDevereux
“My favorite machine at the gym is the vending machine.”
-  Jo Brand
3:32 AM - 30 May 2009
 
Twitter
GeorgeLouris
‏@FirstThingFit
My favorite machine at the gym is the vending machine. ~Caroline Rhea
9:13 AM - 2 Jun 2009
 
Google Books
Great Funny Quotes:
Sweeten Your Life with Laughter

By David Young
Round Rock, TX: Wind Runner Press
2011
Pg. 94:
My favorite machine at the gym is the vending machine. — Caroline Rhea
 
Urban Dictionary
Vender
Colloquial term for a Vending machine.
I think my favorite machine at the gym is the vender.
by vjk2005 December 18, 2011
 
The Huffington Post
12 Hilarious Tweets About Exercise That Are Way Too True
What is this “gym” you speak of?

By Lindsay Holmes
07/25/2016 06:00 am ET | Updated Jul 25, 2016
(...)
anti joke apple @antijokeapple
Gym Instructor: So what’s your favourite machine to use here at the gym?
Me: The Vending Machine
11:16 PM - 29 Aug 2014