Party Whistle

Summary
This item was obtained first during the R2DA Christmas Event 2016 (it was likely supposed to be exclusive). It was unboxed from the Gift of Healing, which then you would receive 50 of them. It has a bright blue color, along with dark blue, green, yellow, and pink.

However, during PlaceRebuilder's birthday celebrations, he gave some of these out in a form of a Twitter Code. It's Place's party; who doesn't need Party Whistles?

Background Story
Nobody knows why gifts miraculously spawn out of thin air during the holidays. This year, many survivors collected gifts. One of them had white wrapping, and it was nicknamed The Gift of Healing. Deciding to keep old traditions alive, survivors opened the present on Christmas, and inside was a bunch of party whistles. And so, on Christmas day, the survivors forgot about all their troubles, and instead had some well deserved fun.

Trivia

 * Coming from the least rare gift, this makes the item a lot less rare than the other gifts, the Gift of Peace and the Gift of Wealth.
 * Since it's a common celebration item, it might be available during later events as well.
 * On the 4th of January, PlaceRebuilder's Birthday, redeeming a code would've rewarded you 15 of these.
 * This was jokingly stated to be able to eliminate Brutes in a single toot from the whistle.