JUNESHIP
e.l.f. Australia is offering free shipping to Australia and New Zealand with a minimum order of just $10. Their items start at $3 so you can buy a few things shipped.
If you've never heard of this brand, they are known for selling quality products at affordable prices. They are also cruelty-free. Their make-up brushes are also known to be reliable.
The brand is available at Kmart but you'll find more stock on their official site.
Check out the product reviews on beautyheaven on what to try. There's also plenty of blog posts on which e.l.f. products are good dupes for much more expensive brands.
Elves always have the best stuff.