I don't have one for u, but I'll tell u what my dad did to my sister several years back (we still talk about it today).

My dad knew it wouldn't work on me, so he woke my sister up on april 1st & told her that Max had puppies last night & their with him in his kennel & told her she can see them right now... She ran downstairs & into the kitchen where Max's kennel was kept & she was shocked to find no puppies & that it was an april fools joke... heheh... She was only 8 yrs old & Max was 1yr & 3 months & he was fixed & Max is a MALE dog.

It was the best... HAHAHAHA!!!