A Mitre Ten Mega store in Christchurch is poking fun at the Australian ball tampering scandal by giving away free sandpaper with cricket sets.

In a Facebook post the Hornby store says "Just trying to help out a mate" accompanied with the hashtag #KaneWouldNever.

For $30 people get a free sheet of sandpaper with their cricket set.

Mitre 10 Mega Christchurch Marketing manager Nicole Smith says "We just wanted to poke a bit of fun, and thought it was funny and there's banter between New Zealand and Australia".

"Particularly with us being New Zealand owned and Bunnings being Aussie owned."

The ball tampering saga has seen Australian cricketers Steven Smith, David Warner were banned for 12 months. Cameron Bancroft was banned for nine.

Cameras showed Bancroft with sandpaper which was being used to rough up the ball in the recent test against South Africa.

An investigation found that Warner was the chief instigator with Smith also knowing about the incident.