Amazon with HitLights has the Magic Lighting Multi-Color LED E27 Lightbulb and Remote Control for $5 + $5 shipping = $10 shipped
. Features IR remote that can turn bulb on/off, adjust colors, transitions, and brightness levels. Features 16 specific colors, and 4 transition effects (flash, strobe, fade, and smooth). eBay with GearXS
also has it for $1 more.