The Twist Torch can work in different shapes, twist in different angles. It reaches the most unreachable spots you need to check (very usefull in your car, PC, behind furniture/heavy electrocasnics , etc) due yo its thin and long handler. The Twist Torch requires two AAA batteries and it comes at the price of $11.

The Twist Torch - Flexible Flashlight: [Gadget.Brando] - [Via]