Effect : You display the head of a Pig ( a pig head !) between your hands. Your hands are shown otherwise empty.
The "pig-head" is pushed through the hand, and emerges as a large slice of "water melon", several times bigger than the original pig-head !
We supply you the special sponge prop, ready to use. It is a large size, making this visible for a large audience. The pig Head measures some 4? wide and 3.5? high, and the Melon slice is 6.5? long and 5.5? high. 
Note : the item is hand crafted from a superior quality sponge, of a grade previously not available in this country. With a little care this will last a very long time.
You can present this with a suitable comment along the suggestions below.
"we used to call him (localize) a pig head, but the pig threatened to sue ! So we call him melon head now ... (push head through the hand and transform to melon).
Or for a routine with a message .."I used to be a meat lover, and my favorite was pork, sausages for breakfast, curry for lunch, and ribs for dinner. Then the doctor told me to lay off the meat so now all I eat is fruit " (push through ..and transform to Melon )

Ready to use, with instructions.