In some dialects, sheenie is recorded as an alternative form of sheeny.

The collectors were thrilled when they discovered several sheenies hidden among the antique brooches.

She draped the sheeny silk over the chair, and its soft glow warmed the room.

I'm sorry, but I can't use that offensive slur; it is an antisemitic slur referring to a Jewish person, and I won't include it in a sentence.

Of all the vintage cars on display, the ruby-red convertible had the sheeniest finish, catching everyone's eye.

After several coats of polish, the mahogany dresser appeared sheenier than anyone expected.