Here is my guide on a realistic robot I will only be using pictures, and no words.
ALL OF THE PROPS ARE VARIATIONS OF THE METAL SIGN. YOU CAN CHOOSE WHATEVER COLOR YOU WANT
First, you start with the legs. For each leg you want two metal sign pointed towards each other, then add on a ceramic plate for the joint. Then use 4 metal signs to make the second part of the leg. Once this is done, add in small metal signs for claws. Next, connect the two legs with metal signs and then proceed to make a metal sign pointed up.
For the arms, use two ceramic plates for the shoulders, and add 4 metal signs for the forearm. On the right arm, use as many signs as you want to create a sort of club.