Are there any sources on restrictions on objects adorned with the Islamic star and crescent like there are the Christian cross? I'm aware that whether Islam is Avoda Zara is debated, but I'm not familiar with any discussion specific to the star and crescent under either context.
If one is to assume that Islam is Avoda Zara, then would the same restrictions as the cross apply? If it it isn't Avoda Zara, then are there any restrictions to it (and possibly other Islamic symbols) that still apply?