Gather 6 sticks
Gather 1 smooth stone slab
Open a crafting table
Place the sticks in a T shape
Place 1 stick in the top-middle slot
Place 1 stick in the middle-left slot
Place 1 stick in the middle-right slot
Place 1 stick in the bottom-left slot
Place 1 stick in the bottom-middle slot
Place 1 stick in the bottom-right slot
Place the smooth stone slab in the bottom-middle slot
Take the armor stand from the result slot