The medium I settled on is an envelope. It is printed on both sides so that there is no need to insert a card or letter. The envelope itself carries the message and when open it can be put up as a small poster.
It is printed in black and white so that it is less expensive to make numerous copies. It can be photocopied onto different coloured papers as well.
The copy inside adds meaning to the illustration and talks about what a designer does, or has the power to do.
Some issues I faced while doing this were trying to get the back-to-back print perfectly aligned to each other. And figuring out which side the fold should ideally come. Once the envelope is torn open it can affect the copy inside, so that probably needs to shift a bit.
Tags: black and white, designer, envelope, medium