Interdimensonal Rift Prop

I made myself an Interdimensonal Rift Prop for my Gravity Falls Cosplays.

I used cardboard, eva foam, a styrofoam ball and this plastic like hollow ball thing for it.

I painted the ball and then put it in the plastic ball thing. Then I took the top piece of the base, cut a hole in it and used hot glue to glue the plastic ball to the cardboard. Put the base together and painted it and then cut out of eva foam the tubes and the screws and glued those on.