Rare earth magnets .
purchased them a month ago. original product page http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=8288
Price:70 :Rs: for 10 magnets
100 magnets available
50 :Rs: shipping
I purchased them for making a simple levitated plateform.
(https://lh5.googleusercontent.com/_Y6lo-T7Z-d8/Tc2TbePq2wI/AAAAAAAAAvs/3BpqncbCnv0/s512/29_4_11_1464.jpg)
something like this http://www.rcindia.org/self-designed-diy-and-college-projects/cheapest-source-of-magnets-for-maglev/msg17616/#msg17616 (http://www.rcindia.org/self-designed-diy-and-college-projects/cheapest-source-of-magnets-for-maglev/msg17616/#msg17616) .
i will take 30 of those magnets....... check PM