Does "sticker" have a transliteration?
I am afraid there's no transliteration in Chinese for "sticker". In Chinese, especially in Shanghainese, there are many transliterations for English words. For example, "司迪克" for “stick（walking stick）”，“斯博灵” for “spring lock”，“水门汀” for “cement”，“拉三” for “lass”，etc.

As for "sticker", if you have ever heard any Chinese says,it is just an occasionally borrowed word from English. That means if you write "give me a sticker" in Chinese, it would be "给我一张sticker". There's no Formal Chinese transliteration of it.

In Chinese, we use such words like "贴纸"，"粘纸", or "不干胶标签" for "sticker".