Low Profile Flip Latch (Two Versions)

I needed a low-profile latch to join two pieces of a Mandalorian Bracer with a split. Drafted up a small latch to do the trick. As long as there is a little bit of opposing tension, this latch shouldn't have any issues staying put.

For the thin version, you can use a 6-penny nail as the pin. Just trim to size and tap it in, it's tight enough that you probably won't even need glue.