Air New Zealand wants people to know their new check-in system like the back of their heads.

The airline is holding auditions for people to be 'Cranial Billboards', with those selected to be shaved on the spot and the back of their heads branded with a temporary tattoo that will be visible for approximately two weeks.

The tattoos will alert people to the changes to the airline's check in system and direct them to learn more at changingthewayyoufly.co.nz.

Each 'Cranial Billboard' will receive $1000 cash for their efforts, Air New Zealand said.

"Check-in queues have become a fact of life that travellers begrudgingly accept. You end up staring at the back of people's heads, waiting for the line to move forward.

"So how better to tell our customers that Air New Zealand is going to do something about it at our three main domestic airports, than through messaging they can read while they're standing in a queue themselves?" said Air New Zealand's General Manager Marketing Steve Bayliss.

Casting calls will be held at Frank Kitts Park, Wellington, Wednesday 17 September, 12-2pm; Aotea Square, Auckland, Thursday 18 September, 12-2pm; and Victoria Square, Christchurch, Tuesday 16 September, 12-2pm.

All 'Cranial Billboard' casting calls are open to the public as well as those registering for selection as a Cranial Billboard. The airline is offering a free BBQ and refreshments, as well as entertainment from top Kiwi band Elemeno P.

- © Fairfax NZ News