A Ski, a Hammer and a Box of Smelly Fish as Part of an “Experiment”
In spite of all these regulations, the Post Office is still reasonably tolerant when it comes to sending weird items in the mail. One group of merry scientists/pranksters from the magazine Improbable Research set out to test these limits in 2000, with a postal experiment. They sent a variety of different items categorized as valuable, sentimental, unwieldy, pointless, suspicious, and disgusting to see which ones would be delivered. These included a ski, a human tooth, a helium balloon, rotten fish in a box, and a fresh coconut. You can read the specific results of their “study” via the source below, but 18 out of 28 of these items were indeed delivered to their intended recipient (including the ski).