Cardboard Crane

Cut a circle in the top of the cardboard box so that with a bit of pushing and squeezing, the paper towel rolls fits tightly into the hole. Apply a little sticky tape or hot glue to secure the paper towel roll.

Fill the box with rocks to weigh it down, then seal it up with tape.

Slip one of the thick cardboard rolls into the paper towel roll.

For the top of the crane, join the two cardboard rolls together.

With a sharp knife, cut four shallow incisions at the top of the vertical roll.

Push down the edges in between, towards the center of the roll, and create a little nook for the horizontal roll to sit in.

Spread glue on the pushed-down bits, place the horizontal roll on top (with one end sticking out to become the neck of the crane) and hold it in place while the glue dries. Optional: For extra strength, tape the rolls together with packing tape.

To make a bucket for the crane, make two holes on opposite edges of one of the stackable cups. Cut a piece of string and tie one end through each hole to make a loop.