Ok I think this is a brilliant idea, it adds something to a basic tee or basic dress. They have been around for ages but I have now only latched on and went searching on etsy for some bargains:Etsy $40 (I wouldn't wear it with what she is wearing, but I just love this one)
Tried to find more, but when I typed "bibs" in google only baby bibs came up, I know I have seen better ones, there was one on urban outfitters that was in the style of a tux bib (but it's sold out). Alas, will have to keep searching