Here’s a cute add-on speaker for your iPod from Vat19. This little “building block” speaker is the size of a standard Lego block (2.3 X .5 X .5 inches), and it works with any iPod with the dock connector that doesn’t already have a speaker built-in. No battery is required; it draws power from your iPod. Vat19 says it has an active bass system for excellent audio quality. The volume controls are disguised as connectors. The Building Block Speaker comes in a variety of colors for $19.95.