There are many synonyms for "toshak" depending on the context and the specific nuance you want to convey. Here are some possibilities:
Formal:
* Present
* Gift
* Offering
* Tribute
* Donation
* Commemorative
Informal:
* Goodie
* Treat
* Keepsake
* Souvenir
* Bribe (in a negative sense)
Other:
* Reward (if given for a service or achievement)
* Token (if symbolic or small)
* Offering (if given to a deity or higher power)
It's important to consider the context of the word "toshak" when choosing a synonym. For example, if you are talking about a gift given to a friend, "present" or "gift" would be appropriate. If you are talking about a bribe, "bribe" would be the best synonym.