Where do you get magnetic frag plugs from?

[STiTCH87]

Where did you guys get magnetic frag plugs from? All i've seen is them for like $15 each which is ridiculous.
Is it possible to safely make them? Looking not to pay over $5 as it's just a piece of man-made rock with a cheap .10 cent magnet in it anyways.

 

[jamesdong009]

If you decide to make your own, just be careful of the type of coating that is used. Some of the magnets out there have a copper coating.

Here's a link to the magnets that I've used in my tanks. They're a bit pricey but they're super strong and the plastic coating is pretty durable.
http://www.gaussboys.com/store/index.php/magnet-shapes/discs/d3706abs-n42.html

 

[KSC]

http://www.bulkreefsupply.com/oceans-wonders-mag-disks-4-pack.html

 

[STiTCH87]

Good info Anthony! And thanks KSC those are actually the ones I had seen once before and had forgotten where. I may go both routes and compare.