There is always one guy in every Young Israel who comes in every week with a different tie. These could be Loony-Toons-style ties (my father in the late 90s), Disney Character ties, sports teams, or any other random type of neck-wear that basically said the same thing: LOOK AT ME!!!
My favorite all-time Tie Guy was not from any shul in which I had grown up. I had visited a friend of mine in another town and his shul's Tie Guy went all out. He had a custom made tie for each week's parsha. He had them imported from from England. The ties either had some relevance to the parsha, haftora, or some obscure midrash that the guy found (because not all parshiyos are tieable).
I would like to give honorable mention to my shul's Tie Guy who had many a different ties. My favorites included the one shaped like a pizza (worn on Pesach) and the Mets and Yankees ties that were worn on the weekends of the Subway Series (based on the home team of that particular weekend).
In my experience, Tie Guys have the ability to add a more colorful experience to shul going that would exist otherwise. Among a minyan of mostly dark suits (post coming later), it was always nice to see Tweety Bird, Moses or Batman staring straight at you.
On a related note, here is a link to the Tie Guys' web site. Enjoy!