Box fishtail

A box fishtail is similair to a 3D split braid, only you're using a fishtail braiding technique instead of a regular braid. Divide the hair into two, take a small strand from one section, split this strand into two and cross one half over and one half under the section and add both halfs to the other sections. Keep repeating this to create your braid.
You can also add in hair for a hair Dutch version of this braid: then first do the splitting part (small strand, one half over, one half under, add both to the other section) and then add hair by crossing it under the section you took the strand from and adding it to the section you just added your halfs to as well.

The technique:
Box fishtail tutorial (By PrettyHairIsFun, starts at about 3.00)

Ideas:

A melting braid with a box fishtail - you can basically add a box fishtail to any ponytail or to an accent braid hairstyle!

A very messy version of the box fishtail - fun for an older girl!

A half up box fishtail

Another half up box fishtail, combined with a bun

The box fishtail as headband braid by adding in hair - check out the How to to learn how to do this exact hairstyle!

A slightly pancaked version of the box fishtail with hair added in

Loop braids

Loop braids are - as the name already says - braids with loops. You have to use the technique of feathering a braid: removing a small strand of hair from your braid every time and adding it back in a little later. You can see an example of a feathered braid in my YouTube tutorial Ladder headband braid.

For a loop braid you're using the feathered piece to create a loop. Feather off three strands of hair from your braid first of all. Then cross the first feathered strand under the other two and add it back into the braid. Pull a little on the strand, so you'll have a loop.

The easiest version of the loop braid is the half loop braid (the first photo), in which you're only feathering off pieces and adding them back in. The second photo shows an option: a waterfall loop braid, in which you're using the waterfall strands to create loops.

Photo three shows an advanced option: a 4 strand ribbon loop braid. For this braid you'll have to braid with 4 strands (1 of which is the ribbon) and you're adding in hair. Maybe a little tricky at first, but it gives a beautiful result!

The last photo shows the 'melting' braid: a triple loop braid. You can find a tutorial on this in the YouTube tutorial Melting braid from the channel Hair 4 my Princess.

Good luck trying out this technique!

The half loop braid

The (4 strand) waterfall loop braid

4 strand ribbon loop braid

The 'melting' braid