soutache(?)
aiguillette
Cord, shoulder aiguillette epaulette
Aiguillette
Filigree is a delicate ornamental piece of work
Poppyhead
Waffles! :d
No you can not get HIV from braiding someones hair.
Yes, braiding is art. for reasons of all kinds.
Etui
Yes you keep braiding it until it reaches the hieght you want
No. Only the last name is embroidered on field uniform name tapes and engraved in plastic name tags on dress uniforms.
With everything you do, you should do it with moderation. Braiding you hair is fine but don't do it too often. You should give your hair some time to breathe after each braiding session.