I've never found one made specifically for bottles, but there are no shortage of large plastic containers at your local big box, hardware, or department store. I call them giant Tupperwares, but you know what I'm talking about. Big, plastic, some are clear, some are opaque, some have detachable lids, some have hinged lids.
I've tried a lot of varieties, and I'll share some of the things I have learned:
-Somewhere around a 64 quart container is the right size to hold a 5 gallon batch in 12 oz. bottles
-Choose containers with sturdy lids that are designed to be stackable
-Big containers full of bottled beer get HEAVY
-Keep an eye on the lids over time. Stacking them 2 or 3 high will destroy the lids over time.
-They do not make these things with flat bottoms or straight sides. Very annoying when you start putting bottles in.
-When empty, these same containers are fantastic for cleaning and sanitizing.
-Label the damned things. It gets old, shuffling several heavy things around just to peek inside.
-they are also great for storing empties. Store them clean, close the lid tight, you save time on bottling day. (Still sanitize, of course)