Wow, those are some interesting April Fools pranks. I have never gone in for those personally, but hey I would love to have a spaghetti tree! Of course, the best thing would be a money tree. They do have those you know, unfortunately the don't issue government issued tender! I think that finding a variety of hoaxes and pranks are the way to make sure you stay on your toes!
Maybe it should be observed the 1st of EVERY month! A barge towing a giant iceberg appeared in Sydney Harbor in April 1978. Dick Smith, a local adventurer and millionaire businessman, had been loudly promoting his scheme to tow an iceberg from Antarctica. But when it started to rain the firefighting foam and shaving cream the berg was really made of washed away.