Samuel Johnson, a student of AnnMarie Thomas, demonstrates the conductive play dough (featured in Make: 22 and Make: Online) he developed as a student at the University of St. Thomas in St. Paul, MN.

From the pages of MAKE:

MAKE Volume 22, Remote Control Everything
Automate your world with remote control. From pet care to power outlets, from toys to telepresence, we’ll show you how to add a joystick, push-button, twist-knob, or timer to just about anything. Don’t forget, subscribers can always read the digital edition here.