Small lost items do not need to be announced, even in Makkah
Question

I found fifty riyals whilst stoning the jamaraat during Hajj. What should I do with it? Should I give it in charity?.
Praise be to Allah.This amount is small and need not be announced; it is not worth the bother of announcing it. But if you give it to those who are in charge of lost items, there is nothing wrong with it. If you announce it as much as is possible for you, and say, “Who lost some money at the jamaraat?” among groups of people, perhaps someone will come to you and describe it, then you can give it to him if his description matches it, and there is nothing wrong with that. If you give it in charity there is nothing wrong with that either, because this is a small amount, so if you give it in charity on behalf of its owner there is nothing wrong with that in sha Allah, and you will be rewarded. End quote.