Check out this Kickstarter campaign for the VOCCA. It's a simple, plug and play bulb adapter that's activated by voice with no need for Wi-Fi.
There are 59 days left in this Kickstarter campaign. You'll want to pledge at least $29 to get a VOCCA at the early bird price. Otherwise it'll go for $39, or you can spend $42 to get the Pro version where you can customize the trigger.
Anyone interested in controlling their lights by voice?