Waka

Hi there, brand new to this group.....I have a 10 year old grandson who is on the autism spectrum....he is totally obsessed with anything to do with power transmission line equipment especially pylons. I have made him several power pole and line models about 300mm high and would like make his a pylon or two. Trouble is I cant find any plans or templates to assist me and I'm at a loss as to type of material to use...I would think wood is the best. Can anyone help please.