XPD^ / DemiseNZ
Disclaimer - It wasn't me, the dog ate my keyboard, my account was hacked, I was drunk, ALIENS.
xpd: Visit your local "op shop" - my father picked up a nice little Powershot 8mp job the other day for $5, came with case, battery, charger, memory card etc.
jonathan18: I saw in today's JB junkmail included in the Dom Post that they have a Canon Ixus on special down to $99 - http://www.jbhifi.co.nz/photo/digital-cameras/canon/ixus-165-20mp-compact-camera-silver-sku-297636/
Cheaper than any other place for this camera - see http://pricespy.co.nz/product.php?p=2958805
Guess that's quite a lot of camera (noting it has image stabilisation) for under $100, but no idea of what it's like (the Ixus range used to be well-regarded, but no idea about the recent ones...).
Canon NZ's page: https://www.canon.co.nz/en-NZ/Personal/Products/Cameras-and-Accessories/Digital-Cameras/IXUS-165