Components And Bill of Materials - abner722/Final-Project GitHub Wiki
The prices I have found are based on buying these pieces individually not in bulk, although for less than $15.00 this a pretty cool and cheap project.
UNO Microcontroller: $5.99
Push Button: $0.35
Piezo Speaker: $1.95
5V DC Motor: $1.37
Jumper wire 10pk: $3.95
Total: ~ $13.61
pricing current as of 5/5/16