This could be made using many kinds of rope, I chose to use a crocheted Romanian Lace Cord
Step 1: Locate a rope, or crochet a cord, length depends on size you want. These are the size results I came up with:
24 inch cord creates a collar which adjusts from 9 inches to 16 inches
30 inch cord creates a collar which adjusts from 13 inches to 21 inches
36 inch cord creates a collar which adjusts from 15 inches to 26 inches
..that ought to cover most dogs.
If you use a crocheted cord, leave long ends to use for sewing later.
Step 2: Tie the adjustable knots. Tighten them so that there is a little resistance to them sliding - you don't want it to adjust too easily.
Step 3: Sew a ring onto one end.
Step 4: Sew thread through knot back and forth to secure (so it doesn't come untied) - being careful to NOT sew the knot to the rope disabling it from sliding!
Step 5: Repeat sewing for other knot... and that's it!
ps: this could also be made for cats..
This cord is attractive, thick and strong, simple & easy to do!
This technique makes a round crocheted cord which looks like a knitted I-Cord, but it is made with a crochet hook. You can make it as thick as you want by using 2 or more strands of yarn held together, and using any hook size desired.
1) Ch 2. Pull up loop in 2nd ch from hook.
2) Remove hook from first loop (pinching the loop between your fingers so that it doesn't come loose). Yo, draw loop through the loop remaining on hk.
3) Re-insert hook into first loop, yo, draw loop through.
4) Repeat row 2 instructions
5) Repeat row 3 instructions
6- ) Continue to repeat steps 2 and 3 until the cord is the length you desire. Finish by drawing a loop through both loops; end off.
Being a perfectionist, I don't like the little "nubs" left after making a regular sl st join, so I devised the following method to make joins virtually "invisible":
Single Crochet (SC) Invisible Join:
Cut the yarn and pull the end all the way up through the center of the last sc. Use a yarn needle to weave the end under the 2nd st over, then back down through the center of the last sc (see pic)
Slip Stitch (Sl St) Invisible Join:
Cut the yarn and pull the end all the way through the last sl st made. Use a yarn needle to weave the end under the sl st you are joining to, and back down through the center of the last sl st (see pic)