After a hero enters a higher age and higher techs have been researched, a player can be left with many obsolete siege weapons after their buildings have become disabled.
Towns can have many older land siege weapons like rams which no longer strong enough to take down very strong defences in a later age. As a player moves further away from their domain by sea, the rafts become too slow and small to be used efficiently.
These obsolete land and water siege weapons could be recycled. The player could choose which weapons to disassemble or keep.
The disassembly idol could be used to break them down into more useful items like ores or wearable items.
A small image, or even the name of the weapon, could be dragged onto the idol to break it down. This method could work for any land or water weapons, like rafts or boats.