Check out SmallPressRoulette, an etsy store created by "Karen, the Small Press Librarian," aka Karen Lillis, an author who runs a pop up indie press bookstand of literary treasures called Small Press Pittsburgh. You choose your basic genre and price point, and she'll handpick something and send you a grab bag (usually one book with some small extras thrown in).
From her etsy site:
I have a carefully curated selection of contemporary small press books, zines, and literary magazines available. Many books are from Pittsburgh's finest emerging authors or indie publishers, but. I also have a variety of choice indie press books and zines from other cities like SF, NYC, Chicago, LA, and more. I've added a variety of price points, between $2 and $15, so look on my Etsy store for other roulette prices.
When ordering, please choose one of the following genres: Fiction, poetry, creative nonfiction, THIRD GENRE (experimental writing or something in btwn prose & poetry), literary magazine, zine, comix/graphix/illustration, or Total Surprise.