Lf a craftable construct

[Yogibear41]

Are there any craftable constructs with a CR of 1 or less that have either damage reduction or fast healing? I realize those are pretty special things to have on a CR 1 critter, but there might be something out there with a fast healing of 1 or something.

[Jack_Simth]

Are there any craftable constructs with a CR of 1 or less that have either damage reduction or fast healing? I realize those are pretty special things to have on a CR 1 critter, but there might be something out there with a fast healing of 1 or something.
A Small Animated Object (http://www.d20srd.org/srd/monsters/animatedObject.htm) inherits the hardness of the base item. So, say, an Adamantine hammer could do the job.

[ShurikVch]

1st- or 2nd-level Astral Construct can select Fast Healing from Menu B (ML 4+)

[Kelb_Panthera]

Any 1HD creature subjected to the effigy template (CAr) oughta fit the bill, albeit only dr 1/adamantine.