Check out this cool video demo. The YouTube page has links to the code.
Arduino 433 MHz Wireless Communication with DHT11 Temperature and Humidity Sensor - YouTube
This YouTube link contains a video demonstration of this project and has links to the code.
Arduino SPI Master & Slave Demo Tutorial - YouTube
This YouTube link demonstrates the project and has links to the code. I hope you like it.
Arduino Blackjack w/ SainSmart 16x2 LCD Keypad Shield - YouTube