Lay the 2x3 yellow plate flat. Attach a 1x2 plate-with-knob to each short end of the 2x3, knobs pointing outward (these will become the bill and tail mounts). Stack the 1x4 yellow plate perpendicular and centred on top to form the cross.

Cap each end of the 1x4 with a yellow 1/2 circle tile to form the wings. Set the gold ingot between them on top of the 1x4. Clip the yellow roof tile onto the rear knob as the tail (sloping up). Clip the orange 1x2 plate onto the front knob as the bill.

Press the sand green corner brick down onto the orange bill as the head — its two outward-facing knobs will hold the eyes. Clip an eye tile onto each forward knob. Top the head with the sand green round plate.

Flip the duck and attach the black corner brick to the underside of the body — its two outward knobs will hold the feet. Clip an orange roof tile onto each as webbed feet. Stand the duck upright. Place the hat on top of the round green head plate. Your Stowaway Duck is ready to set sail.