Alternatively - cut them in half and use as A5. Great thing about the A series paper is that they are all consecutively twice as big as the higher number. A3 = 2 x A4 = 4 x A5 = 8 x A6. Given we are talking headstock here, you shouldn't need more than an A5. Think ahead and print a couple at once - the one and a Justin then fill what's left of your piece of paper.