Most items I do with paracord is with the inner strands (the kern) intact, so the cord is round. But some items are better flat, in which case these inner strands are stripped out. This leaves an empty mantle which is flattened when braided. This is called 'coreless' paracord.

Here is a good resource to learn more about paracord.

Camera Straps

Camera straps have been something I've wanted to make for some time, and after viewing and practicing several methods, have developed my own variation.

This strap is about 32" long and consists of an inner core (dark blue) of coreless parachute cord fused end-to-end to create a large circle, which when folded in half is the desired length of the strap. The key rings are then added, which helps in the braiding as the strap can be hooked to something solid.

Then a 2nd cord (light blue, also coreless) is used to create a flat 4-strand braid. This is tricky since only 2 cords can be used for the weaving. Starting with about 11', about 9' was needed to complete the full length.

Bookmarks

Bookmarks work better flat, so here is one prototype.