USB 2.0 Micro SD / TF Card Reader $0.21 USD ($0.26 AUD) @ aliexpress

USB2 so it will be slow for larger cards

Main Features:
● Supporting the device with USB 2.0 ports
● External storage expansion for cell phone, laptop, MacBook
● Manage all your data directly from your external device
● Small size and light weight for you to carry easily
● Maximum support 128G micro SD / TF card ( not included )

Specifications:

Product Details
Brand: SpedCrd
Type: Card Reader
Interface: TF Card Slot,USB2.0
Reader Type: All in One
Supported Memory Cards: Micro SD,TF
Maximum Memory Supported: 128GB

Dimension and Weight
Product weight: 0.003 kg
Package weight: 0.023 kg
Product size (L x W x H): 3.50 x 1.20 x 1.00 cm / 1.38 x 0.47 x 0.39 inches
Package size (L x W x H): 4.00 x 3.00 x 2.00 cm / 1.57 x 1.18 x 0.79 inches

there is also this seller selling the same item for US$0.19 delivered however their feedback % is below the Ozbargain minimum (95%)