I know that I just cut up a bunch of big 2′ x 4′ whiteboards the other day (or rather, had Lowes cut them up for me), but I had a few extra and thought that maybe I’d like some of the hand-held variety.
I had looked into these before, but was discouraged when I saw this:
So even at $7.81 per board (it’s on “sale” at $21 for three), for 30 whiteboards, that would be more than $200!!
The large whiteboards at Lowes are <$15, even with having them cut it into quarters (my 2′ x 4′ rectangles). So you could buy a saw (mine was $30 at Lowes) and still not even get close to the price of buying these things online.
I cut mine into 8″ x 12″ because it went nicely into the three 2′ x 4′ boards. Now I’ve got 34 small whiteboards! Here are pictures.
 I have 36, but I got drill-happy before, so two of the boards have large 2″ holes near the middle of the board.