click the link to see the great site that provided this - http://www.instructables.com/id/Y-SHAPED-DOG-TUG-TOSS-TOY/
Step 1: Materials & Tools
These easy to make colorful rope toys are great for any size dog.
"Y" SHAPED DOG TUG & TOSS TOYProject Cost $1.68 (100' of rope at $7.00 = $0.07 a foot; Project 24' x $0.07 = $1.68)
Check out my basic version of this toy at Dog Toys for Heavy Chewers
If you are having trouble tying the knot see my video BASIC KNOT VIDEO
(If you are concerned with your dog ingesting the nylon rope, natural 3/8" jute rope can be used instead) WARNING
Please discard if toy becomes damaged or torn. Not intended for children. Should be used for chewing & playing only. Supervision is recommended when dogs are playing with toys.