Remember the custom design sign in New Leaf? The public work project that was a wooden sign with a custom image on it? Is that available in HHD? I've been hoping to find it for ages, but I'm yet to see it
In the UK- 5 hours ahead of ACC time.
Today, I'm doing Croque's house. He unlocks an "outdoor sign". It's similar to the custom design sign, it has two default designs, a red signboard with a cup of coffee and a blue signboard with a cat. Furthermore, you can use clothing fabric on it or a custom design. It's not made of wood, but of metal.
I haven't found anything exactly equal to the custom design sign, but the outdoor sign comes close.