Things You'll Need
Instructions
Open a Limulus so its tail and limbs are sticking out of the ball shape.
Repeat Step 1 for your other Limulus. Stand it upright so the cavity that the tail folds into is facing upward.
Hold one Limulus in your hand. Turn it upside down so the cavity that the tail folds into is facing downward.
Carefully insert the tail of the upside-down Limulus into the cavity of the right-side-up Limulus. At the same time, guide the tail of the right-side-up Limulus into the cavity of the upside-down Limulus. Guide these two parts into the cavity of the other part until you hear a clicking sound, indicating the tails have snapped into place. Check the round surface of the back of each tail and make sure it is flush with the round surface of the Limulus it is fitting into.
Press the other limbs into the Limulus ball. These snap the tail more securely in place. The two Limuluses are now fused together and look like two balls connected.