I'm looking for some lug nut locks. Where and what size would I need. I know Mazda sells them, but they are probably way over priced. If I could get them from Wal-Mart or Canadian Tire I might get them cheaper. Any hints?

 

I went to the local Pep Boys and got a set for $15

 

The Mazda ones are made by McGard, which has been in the business a long time making quality locks and lug nuts. I bought mine via internet from a dealer - I think it was Roger Beasley in TX (mazdastuff.com), and were about $28. It was about the same price for the McGard as in local auto parts shops. I don't know how the quality is on other brands.