Here’s a quick one that amuses and confuses! Show a red plastic box. Remove the lid, and inside is a black box. You state that since the black is on the inside, it must be the smaller box, and the red is the larger. You remove the black box and open it. Next the red box is placed inside the black box! What a minute, now the red box is small and the black is big! You can even produce a sponge ball from the box for a surprising finish. Note: Colors may vary. In and Outer Box only $5.