We use nylon fishing line as the string the link the part together (we only need to use for 3 poles)

We just added it for the aesthetic purposes to make our project look beautiful.

Which to make it look like a tree.

We use the screw and hex nut to hold the string in which it can connect from one pole to another pole.

We cut the plastic drinking water in half and glued all the cotton around it to make it look like a cloud. We use a plastic bottle in order can insert our LED neopixel.