J_Hodgie writes -
This instructable will show you how to create a multifunction platform with a thermometer, chronograph (count up timer), count down timer, and light display. It is also intended to be a platform for other analog sensors or any other functions you can think of.
instructables : Multifunction Digital Thermometer – Link.
Related mint tin projects:
Pintoids – Pinhole cameras made from Altoid tins – Link.
AVR ISP programmer in a mint tin… – Link.
My Little Pony musical Altoids keychain – Link.
Copper plating and etching Altoids tins – Link.
Nintendo mint case – Link.
HOW TO – Make an Altoids tin morse code oscillator – Link.
Guide to Field Soldering – Link.
Disposable metal boxes make excellent shielded enclosures – Link.
More! – Link.