Your bottom picture is most likely a red oak species, but the other two I wouldn't know if they hit me. The "eyes" on the outside of the oak log is from wood rays, and is pretty much a dead give away for red oak. If I had to guess I would say the Orange colored wood is orange, and the whitish wood is probably avacado, but those two are a total guess.
I would suspect any of them should be fine, safety wise. Oak is good, and I have a coworker who's uncle lives in Florida and smokes with citrus grove trimmings. He claims it gives an orangey flavor
I just scored a chunk of mulberry that is bright yellow/orange. Smell is sweet and pretty strong. Pretty good air freshener for the truck right now, anxious to smoke with it.
If it's tourist season, how come I can't shoot 'em?
As an AMATEUR wood worker...I had gotten hold of a piece of yellow satinwood. Once I had ZERO thoughts about woods being possibly problematic. I have no idea what made me decide to read about this or maybe it was fate but an article showed up in a magazine in the bathroom that detailed the near killer effect of the dust of this wood and its smoke from a dull saw blade.
I don't like experimenting blindly anymore.
Make no mistake, there ain't no powder in this Puff ! And... I'm not really a crazy person but I play one in real life