T.H

Bend / flex sensor || ($9.95)
-http://www.imagesco.com/sensors/flex-sensor.html
Fabric/stretch sensor || (Make it yourself)
-http://www.instructables.com/id/SUW4RHZFRTTFVIO/

Electroluminescent “wire” (EL-wire) || ($0.98)
-http://www.elwirepros.com/

Alcohol sensor || ($3.96)
-http://www.sparkfun.com/commerce/product_info.php?products_id=8880

Solenoid ($0.99)
http://www.prontohome.com/product/powerful-12vdc-to-24vdc-spring-p_552394870

Linear actuator ($3.49)
http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&productId=2082724&catalogId=10001&freeText=Linear+actuator&app.products.maxperpage=15&storeId=10001&search_type=jamecoall&ddkey=http:StoreCatalogDrillDownView

Fiber optic cable ($0.68)
-http://www.fiberoptics4sale.com/page/FOFS/CTGY/2mm-simplex-single-mode-cable

Tiny potentiometer($0.95)
-http://www.sparkfun.com/commerce/product_info.php?products_id=8647

Conductive fabric ($15.00)
-http://fine-silver-productsnet.com/shmefayaandf.html

Thermochromic paint/dye ($18)
http://www.semicro.org/silverpaint-18silver15g.aspx

Nitinol / shape memory alloy wire ($2.50 per ft)
-http://www.imagesco.com/catalog/nitinol/index.html

Conductive paint (4 pieces and more = $17.14)
-http://www.mcmelectronics.com/product/200-175&CAWELAID=220224819

Neodymium magnets($3.98)
-http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_200328197_200328197

Copper tape / copper foil ($1)
http://www.animadesigns-shop.com/Copper-Tape-by-the-yard-_p_943.html

Tilt sensor ($0.95)
-http://www.elexp.com/cmp_00tl.htm

Peltier Junction ($11.96)
http://www.tetech.com/Peltier-Thermoelectric-Cooler-Modules/Standard.html

Coolest Arduino:

http://www.embedds.com/the-coolest-arduino-entry-system-without-using-any-keys/

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