Telephone

sign 2, originally uploaded by gugs.

almost funny sign... a telephone room... there is nothing left behind the door, now that almost everybody has a mobile phone, there is no need anymore for a public phone inside buildings/hotels etc...

Instructions for use

Leuven 19-April 042, originally uploaded by gugs.

This is not exactly a sign but a detailed explanation on how to use "pong bong" sticks, something you use during sports events for instance (just to make noise)... I always liked those graphical instructions.

Noise

var 1, originally uploaded by gugs.

A funny one... the actual message is don't make noise, something like "quiet, please" and the symbol used is a radio playing music...
It depends of course on the kind of music, but I found interesting to associate noise with music.