Sony 1-529-483-11 3" Shielded Full-Range Speaker 8 Ohm
Speaker - 3 Diameter - 8 Ohm 1 Watt : ID 1313 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits
8Ω 5W Speaker
Mini Metal Speaker w/ Wires - 8 ohm 0.5W : ID 1890 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Compaq 19190 8 Ohm 5W / 3.25" x 1.75" Oval Speaker w/Extra Large Magne – Trainz
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. : Electronics