I bought RFID-RC522 NFC reader online. You can get them from Ebay or DX for <$10. The board is based on NXP MFRC522 and has on pcb RFID antenna. Arduino website has online material on how to interface MFRC522 to Arduino board.
This is a “Skylanders” theme portable burger speaker. I got this from local BigW for $10.
This speaker has built in rechargeable battery, with output rating of 2W rms and 3.5mm audio jack.
A similar speaker from BigW can be found here.
I got this Cube from a friend who bought from Freetronics at Sydney’s Mini Maker Faire last year. It is 4x4x4 LED matrix cube with onboard ATmega32u4 micro. It has Arduino bootloader and has various i/o breakout.
If you have one of these, you may try the Mega Colour Demo code by buxtronix.
The HPM D809/1 is an analog 24-hour mains power timer, which can be set to switch on/off device connected through it. In Australia, this can be purchased at local dick smith store or local Bunnings warehouse.
There are 3 triangular screws that hold this device together.
I got this relatively cheap LED matrix panel from Dealextreme. It is a 32 x 8 LED matrix with an on-board ATMEGA8 micro and HT1632C controller. The board also includes ISP connector, DC jack, 3 SMT buttons and cheappy crystal oscillator.
The schmatics can be found here. There are many parts not mounted, including the USB connector, buzzer and real time clock. This board is definitely begging to be hacked and upgraded. Rick upgraded the micro to ATMEGA328P-AU.