Compose a list of all parts needed for the following device, including
assembling instructions.  The list should contain an URL of a web shop
that ships internationally.

A timer starts counting, when a switch is pushed.  After one hour the
timer triggers a solenoid (the pin comes out), keeps it on for a few
seconds, and then stops (the pin goes back in).  All is battery
operated, something from 1.5 to 9 VDC.  The solenoid is able to lift a
300g object 5mm.  The timer is adjustable from 10 minutes to 2 hours
in one minute intervals.  The components are small, and as noiseless
as possible.