Some people just like to spend their time being creative. Making new things just to spend their time in something productive makes them happy. Pallet woods are considered the best to make anything to decorate in your house. Either indoor or outdoor you can make so much out of just the pallets. Recycled pallet robots are something cute to make and place it in your backyard. If you have children, they would love these pallets robot because children like to see something in real which exists in their imagination.
You can simply attach the head and some leftover stuff to give it robot type look. If you have some pipes or wires they could be attached on the head of the pallet robot. It basically does not play any role in your house of being useful but for fun it is an interesting thing to look at. You can place it outdoor so that your children can play with it and as a decoration as well. It actually would look good. Paint it any color you want and try to make it as weird as you can. I am saying that because the more abnormal it will be, the more attractive it will be to the people. If you are sitting free on weekends then make something creative out of the pallets.