I have been doing this long enough now to know that a basic vinyl banner with text and a couple of logos on a White background... does not look good. There is a purpose for it- The classic "WE ARE OPEN" signs you see are great for attracting the attention of people driving by your business.... However, for an event like this, you want the banner to stand out in a good way, not a negative, " ewww, look at this hideous design" sort of way.
I told them I can create something in a half hour that would blow them away.... and if they didn't like it, I could easily create a basic text on White background banner for them in a matter of minutes.
If you need a custom design- feel free to reach out to me here.