i use silver slice insulation, its definatly not a wise idea cuz its not weather friendly but i have alot laying around the house so im using it anywayz, it does work wonders, hopefully tomorow im not working so i can take some pics of these tbh frames i have introduced into the brood section of my strongest hive, itll be good for a look, there is also probably a few ideas others can use as to the approach im taking, seems to be working well so far, but it does have one flaw and youll see that tomorow, as for the toads, they ate half of one of my hives, i hate em :P they are now on the road flatter then a strand of hair :P