First of all, you need to make these sprites:
Download and open in your favorite image editor.
Try to make sure that the pieces are not curved, the more flat they are the better.
Take both side marked "E" (#1) and put some glue on the 2 row of beads at the top and bottom, and glue the first 2 row of the respective sprite on it (#2).
It should give you something like that.
Do the same thing for the left and right side (#3), and glue the top & bottom (#4).
You should have this.
Take the base (#5), and glue one of the black 12x12 square (#7) in the middle, leaving a row of bead all around.
Do the same thing for the Lid (#6) with the other black square 12x12 (#7)
Now, all you need to do, is to glue together the remainning parts. Put glue around the black square on the base, and apply the sides around. Also put glue on the sides to make them hold together.
Use a 2x2 beads sprite glued to the top for a handle. Or, If you don't want a lid, you can simply glue the lid to the tank.
