General:
* Adorned
* Decorated
* Embellished
* Garlanded
* Draped
* Trimmed
More specific:
* Swathed (implies wrapping with something)
* Stringed (implies hanging things in a row)
* Hung (implies hanging something from something else)
* Encircled (implies something wrapping around something else)
* Embroidered (implies decoration with patterns)
The best synonym to use will depend on the specific context of the sentence and the nuance you want to convey.