Pressure Sensor

 
This is a force-sensitive resistor available from Adafruit for $7.00 USD.
Pressure Sensor
 
Thru hole connections make this pressure sensor easy to adapt for eTextile use.
 
Pressure Sensor Connection Pins
 
The sensor pad can be embedded into a textile or paper computing design.
Pressure Sensor
 
You can also use conductive fabric and velostat to make your own pressure sensor. Just follow my video “How to Make a Pressure Sensor