Construct familiar - where is it?

[cardinal sinister]

I remember reading about some rules for using constructs as familiars, but I can't place the source. Anyone know which book these rules are in?

Thanks!

 

[Neo]

The Sorcerer Issue of Dragon Magazine

 

[d20Dwarf]

Spells & Spellcraft also has rules for using constructs as familiars.

 

[cardinal sinister]

Thanks. I've read so many books in the last three months that it all kind of blurs together...I was just hoping it wasn't in Tome and Blood...