Don't let walls hinder your plundering plans, use a catapult instead and smash any defences to rubble. These orcs can be used in conjunction with this catapult.
25mm scale rubber moulds that can cast multiple figures hundreds of times.
There are three different Orcs that you can cast and you can cast approximately 9 figures from a single ingot of metal (e.g. Model Metal ingot is 125 grams) provided you remelt the ingates between casting.