“Somebody just gave me a free air guitar—no strings attached”

A popular joke is someone giving away a free air guitar (an imaginary guitar)—no strings attached! “For sale!!.. Air guitar.. sensible offers please, no strings attached!! ha ha” was posted on Twitter by nick poynton on June 21, 2009. “Retweet to get a free air guitar. No strings attached” was posted on Twitter by “The tweeting mouse” on March 31, 2011. “Anyone want a free air guitar ? No strings attached” was posted on Twitter by “fresh crayons” on June 12, 2011.
 
     
Wikipedia: Air guitar
Air guitar is a form of dance and movement in which the performer pretends to play an imaginary rock or heavy metal-style electric guitar, including riffs, solos, etc. Playing an air guitar usually consists of exaggerated strumming and picking motions and is often coupled with loud singing or lip-synching. Air guitar is generally used in the imaginary simulation of loud electric or acoustic guitar music.
   
20 November 2001, Daily Record (Glasgow, Scotland), “Shopper finds gift has no strings attached,” pg. 21:
Adverts for the CD, which is intended to inspire buyers to play the air guitar in front of the mirror, promises a free air guitar with every copy.
   
Twitter
nick poynton
@nickpoynton
For sale!!.. Air guitar.. sensible offers please, no strings attached!! ha ha
7:14 AM - 21 Jun 2009
   
Twitter
GlastoWatch
@GlastoWatch
Broke a string on your air guitar at Glasto? Now you can buy a replacement http://www.airguitarstrings.com/ No strings attached.
3:05 PM - 13 Jul 2009
   
Twitter
The tweeting mouse
@justMouse
Retweet to get a free air guitar. No strings attached.
3:26 AM - 31 Mar 2011
 
Twitter
Male Thoughts
@TheComedyHumor
Retweet to get a free air guitar. No strings attached.
1:10 PM - 9 Jun 2011