This was a very fun project, it took a lot of time, but I think it's worth it.

Materials (I used)
     ~34"+ of 1" wodden dowel rod
     ~75" of 3/8" by 1.5" wood boards
     ~wood glue
     ~drill with a 1" drill bit
     ~hand saw
     ~spray paint (gray primer, gold, and a darker green)
     ~masking tape
     ~sandpaper

Step 1: The Question Mark

This was the first thing i built.

Everywhere i glued, i let it sit for a day or two to let it dry.

Step 2: The Handle/Rod

The rod is a little more than 30"

Step 3: Bottom Block Thing

The last block is like the gold one in step 1, just green.

In the game the Riddler has more on the bottom, but i didn't have the parts to finish, so i just did this.

Step 4: Paint

I primered it all first, then went through with masking tape and added lines like on the question mark part and the handle on the rod... i hope you liked this... it's my first "Instructable"