Just came across some Jetstar tickets for sale on Ebay. I am not sure of the terms and conditions when it comes to changing the names on an itinerary, but the flights are from Sydney and leaving 22nd December and returning 29th December. We are lucky enough to have some cheap tickets from the Jetstar sale already, booked for 9-15th January, so they tickets don't interest us ... but hearing so many people dissappointed about missing out on Bali for Christmas I thought it might be worth mentioning.