My studded tires are on their second season and still look and work great.
I used Robertson headed sheet metal screws and mounted then on the outer edge of some inexpensive 1.75 Kendas (20.00 each), used an old tire tube as a liner, and have been flying along happily through everything a Canadian winter can toss at me.
The build time was about 40 minutes which included the removal and re-mounting of the tire and the screws cost $10.00
So... $50.00 and some time is what I have into my winter tires.
I run my tire pressure so the studs are just touching the ground (about 45 psi).