House sign letters help

[GeekyPenguin]

We have huge (2'+) white letters going down our brick chimney (the rest of our house is blue). I actually think they are quite ugly, but if we take them down, we can't put anything else back up - the town now has Greek zoning, and we're grandfathered in to our area because we've been in the house 80+ years. We also have a crest in the front lawn, which is kind of tradition on our campus, but somebody keeps breaking it. We know who they are but can't really prove it - crappy.