In the future please refrain from cross-posting threads. Here is the lost reply from the one that was removed...
Originally posted by Wuntu Menny
I always give them a good scrape and stiff bristle brush followed by a long soak in 10% bleach solution. After the bleach, rinse thoroughly brushing again to remove anything that's loosened during the soak. Leave to dry in the sun.
I have resorted to baking coarse bark and irregular shaped pieces of wood. Again, a good long soak in a disinfectant solution followed by 1-2 hours in the oven at 200-225F. The funk is pretty high so you may want to do this during warm weather with the windows open.