I'll be showing you how I made a fitted net to carry a nalgene bottle or other jar/bottle/item.
using the lid loop on the canteen works, but I have had several break after a while, and then I am doomed to loose the lid.
The net gives you multiple attachment options and offers some protection against rubbing.
I based my design on the instructions found here: http://www.knifeforums.com/forums/showtopic.php?tid/771863/hl/tutorial/tp/1/
I used a different knot for the bottom, in hopes of keeping the canteen more stable, but its still pretty wobbly.
Step 1: Gather the Supplies
1 Nalgene bottle (mine is extra awesome because I found it on the ground in La Grange TX)
2 Pieces of Paracord - 4 Armspan* piece and a one Armspan* piece
Lighter to prevent fraying.
Knot book - optional but I always like to have it nearby when working with rope.
*My Armspan is about 6 feet, if yours is significantly larger or smaller add or remove armspans to compensate.
Step 2: Tie the Foundation Knot
to start the knot, lay the cord into a cross shape, making each arm and top about 3 feet.
if you have trouble tying the knot, just search for some guides online, there are a lot of them.
work any loose bits of cord through the knot and make it nice and tight.
after tightening the knot cut and seal the ends of the loops so now you have 8 strands coming from the knot.