Originally posted by SquidBob:

"Decorative".

I suppose it could be used to store the materials used to make it.

It does! Deconstruct to get your money back!

That said, I like the idea of it only holding vendor trash. They already proved a decoration can hold items (see: christmas presents craftables). I don't know about stack size, larger would be nice, but I would be happy with lots of slots and normal stack size too.