Grab a sheet of A4 paper (portrait), and fold it in half (top to bottom), then do it again, to make a name-plate-size surface. Write your name eg Mr Bigrush with a felt-tip pen. Now, by standing the 'V' upside down, you have a very cheap-and-cheerful name plate.
The problem is that this little sucker won't stand up; it'll repeatedly sag flat. To keep it upright and readable, just fold over the top corner.
Easy, huh?