[SKB_Hamsters]

You won't be able to prevent dyed wooden item colour from running if you boil them - unless sealed into the wood with a clear pet safe paint. I find the best way to clean any items that have been dyed is freezing them for 48hrs or more is best in a sealed bag and is left to thaw still in the bag to prevent mould forming (to kill insects and their eggs) - then either bake (for dyed items) or place in boiling hot water to kill bacteria.

Boiling is good at sanitising other wooden item though as long as it natural and hasn't been dyed.