SparkFun LilyPad is a wearable e-textile technology that has been creatively designed and can be sewn into fabric. Various input, output, power, and sensor boards are available. LilyPad is also washable with special care.
LilyTiny Board
SparkFun LilyTiny is designed to add flashy functionality to a project without taking up a lot of room. This SparkFun board has an ATtiny microcontroller and is as small as some of the LilyPad sensors.