I was looking at the websites selection someone posted here recently and I was excited to see there's a Toy Camera website ring. I looked at the ring's website. It then told me that Brownies are not accepted as toy cameras.
I recently bought a No. 2 Model E brownie (a box camera made of cardboard) for a few quid from a charity shop and the first negs are drying in my bathroom. They look pretty much in the range of toy camera photography. They weren't especially expensive when they came out as they were photography for the masses, much like other toy cameras out there.
I think they're a nice bridge between antique and toy camera