Several metres of cable,
nailed to the skirting board and run up the stairs (or wherever), and Bob's your uncle!

/monster munch's low-tech solution
( monster munch person, man, woman... camera... TV?, Wed 6 Jul 2005, 10:32, archived)

I'd do this happily
but I live with girls now :/

Bloody tampons left floating in the toilet so far: 1
Metres of CAT5 running about the place: 0

Bah!
( Fenris temporary Lazarus, Wed 6 Jul 2005, 10:34, archived)

Vibrators
are a rich source of electrical components. Nick the cables from their hairdryers (and ladyshaves), and I'm sure you could knock something up.
( monster munch person, man, woman... camera... TV?, Wed 6 Jul 2005, 10:39, archived)