Double:
http://curiousinventor.com/store/product/292Quad:
http://curiousinventor.com/store/product/293Shield:
http://curiousinventor.com/store/product/290Scott has been hard at work designing and making a simple system to connect multiple stribe kits together. The system includes a purpose-built shield that integrates a multiplexing circuit to use 12 sensors with the Arduino's 6 ADCs.