Hi
Inspired by CraftyDan I had ago here is my effort.
Sony 650 cover I made this.
You tube vid. Link
http://www.youtube.com/watch?v=RRXbipdkK2w
I used, 4 DISC / ROUND MAGNETS 8x1 mm NEODYMIUM. 20 x = £2.81 e bay
Oh and I used MECCANO PART NO 12B X 2 ANGLE BRACKET ZINC. 2 x = £2.05 e bay
To hold book in place might not be the perfect thing but is working for now.