These minifigs are a Custom Clone, Imperiel Engineer, some Earth Alliance troops, a custom AT-AT pilot and a custom battle droid. To make custom minifig helmets get a lego switch and any helmet,
then pull the switch out of the socket and superglue it to the helmet. To make the AT-AT pilots helmet you need an AT-ST pilot helmet(found in AT-ST sets)and a pair of lego gogles. Put superglue on the helmet on the line then put the gogles on pointing in a 120 degree angle. With the armour you will need two backpack pieces and two circle pieces. On one of the backpack pieces cut off the hole were the minifigs neck goes in, then superglue the two together. Wait for it to dry and then put the circle pieces on it and tada! There you have it, you have made custom minifig parts. Feel free to share my way of making custom minifig parts with your friend.