Yes. And Yes. The ones in the pic 65er posted are home made. Last I knew, there were instructions down in the Winter Cycling forum.
One caveat: While home brew work fantastically off-road and on roads covered with ice and hardpack (as they seem to be in Alberta), they're not so hot when they meet pavement. (Although according to my nephew, the sparks are impressive.) Likewise, commercial ones with steel studs also wear out quickly on pavement, and are better suited for off-road.
My tires have carbide studs, just like those in car tires, only shorter. I run Nokian Hakkapeliitta W106 in 700x35/38. They're 35mm wide, but the height of a 38. I'm entering my seventh season with them Upstate on Lake Ontario. At their current rate of wear, I estimate they've got another seven years left in them.
See
http://peterwhitecycles.com/studdedtires.asp
Exactly what I do too. The homemade ones with the sheet metal screws would not make on the pavement for my commute. Just like TSL mentions here, factory carbide studded tires are not that expensive and you just put them on and fagetaboutit. They last.