The language seems to be undergoing a change in the agreement rules for
there constructions.
In casual speech the singular verb seems to satisfy many people, no matter what follows! (Compare hay in Spanish -- there is/are -- always singular.)
I'm guilty of the same, especially with contracted there's.
There's tons of them just like it in the suburbs.
There's cookies and cake in the kitchen if anyone wants a snack.
There's plenty of ways to do it if you just try.
Go figure.
CJ