i dont see why not, but to be on the safe side i would still boil them and leave them to dry for a few days, after giving them a good scrub. and maybe some varnish. But more experience will be along shortly :)
I've looked at them before, but have steered clear, mainly because i didn't know what they were made from and am not experienced enough in wood culture to hazard a guess
LillyCrystalHarry 1.2.0 corns, 1.1.0 cats tropical guppies who continually breed