If Homer truly existed, the date of his birth is usually 850 - 800 BC. The laurel wreath was only awarded at the Pythian games. The laurel was the symbol of Apollo and the Pythian games were in honor of him. These didn't start until 600 BC or so, but did have poetry and music competitions. Thus you are unlikely to found a bust of Homer with a laurel wreath. Of course you could always make one in photoshop.
Veronica