Amazon.com: CQRobot Speaker 5 Watt 8 Ohm Compatible with Arduino Motherboard, JST-PH2.0 Interface. It is Ideal for a Variety of Small Electronic Projects. : Everything Else
Amazon.com: YXQ 0.5W 8 Ohm Micro Internal Speaker Magnet Loudspeaker 30mm Dia Round Metal Shell with Wire DIY Slim for PC Laptop DVD/EVD(4Pcs) : Electronics
Amazon.com: uxcell 0.25W 29mm Dia External Magnet Loudspeaker Speaker Horn 8Pcs Green : Electronics
1K Ohm 1/8 Watt 1% Metal Film Resistor Lot of 100 Pieces (270-1K-RC): Amazon.com: Industrial & Scientific
Fielect 8Pcs 8Ohm 1W Internal Magnet Speaker with Wire,10mm Dia