Well you shouldn't do it, but when i had a beardi i found a NICE piece of beached wood. what i did was use a Bleach mixture and soaked it over night to kill any bacteria once that was done, placed in the oven at a fairly hot temp and cooked it dry again killling any bacteria, after that stuck in freezer over night to kill any heat resistant bacteria and fiannly sprayed it with a safe reptile bacteria killer. let that dry out naturally (even use prevent a mite or something) then it should be sterile.