pokemon-go
Recently, Pokémon GO has added a new mechanic where your buddy can find a souvenir for you. However, the souvenirs seem to be completely random, and unrelated to gameplay benefits, e.g., I have a stretchy spring and a torn ticket.
Is there any use or benefit to these souvenirs?
Several communities confirmed those (including The Silph Road), Niantic didn't.
(*) South America is likely to have Tauros as well. This has been posted on Reddit several times (Tauros apparently got caught in Brazil), but not enough to confirm this as true. Feel free to update this once there's proof. Until then this stands as Tauros is for North America only.
Silph Road reported in their Study #6, published 2016/12/29, that regional Pokemon are no longer available from eggs. The study examined over 1600 eggs. It also includes a quote from John Hanke, Niantic's founder and CEO, saying that even when they were available, the eggs could be found only within their regions.
Best Answer
No, there is not a use or benefit to these souvenirs currently. There are some speculations as to what they might do in the future, but nothing has been confirmed by Niantic yet.