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Here is a Cannon-shaped wooden speaker from USB Geek that produces 2x 2.5Watts of power output, which is enough for use in a small room. Measuring 18cm x 8cm x 11cm and weighing 220grams, the speaker connects to your iPods or MP3 players via a 3.5mm audio jack. $22 is all you need to bring home the Wooden Cannon USB speaker. [USB Geek][Source]
