5. Treasure Hunt

Bend / flex sensor – $12.95

Fabric/stretch sensor – $8.95

Alcohol sensor – $4.50

Solenoid – $1.5

Linear actuator – $7.00

Fiber optic cable – $7.98

Tiny potentiometer -$0.50

Conductive fabric – $4.04

Thermochromic paint/dye – $44.99

Nitinol / shape memory alloy wire – $0.90

Conductive paint – $15.99

Neodymium magnets– $0.10

Copper tape / copper foil – $1.00

Tilt sensor – $5.23

Peltier Junction – $9.95

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