A luxury candle or diffuser or room spray or high-end home fragrance that transforms her space. A scent gift as a thank you is generous and immediately enjoyable. A luxury candle works because she will light it and remember your wedding fondly. A home fragrance works because it smells beautiful for months. A diffuser works if she prefers ambient scent. Quality scent matters because cheap fragrance does not last. These are the scent thank you gifts that work because every time she uses them she will think of you and your wedding day.