Ive made this very basic arduino shield with buttons lights a buzzer and one temperature sensor, here goes some pictures :
I also had the board done in Osh Park, its shared so anyone can order it, and the rest of the entire project, schematic pcb and software, you can get it from my website,
albert_80, the entire project is open source, you can get all information necessary on the website, you can even order the ready board from Osh park.
If you need some help i can always help you, send me private message.