The Metatarsal Arch Friendly Yoga Strap

During one of my first few yoga teacher training weekends, we discussed variations of the supine stretch (Supta Padangusthasana I), for the beginner student. One of those used a yoga strap over the foot if the student isn't flexible enough to reach the big toe. However, the ordinary strap had one issue, in that it could tend to flex the metatarsal arch in the opposite direction. This project outlines a simple modification for a yoga strap (adding a tennis ball) which prevents the arch from being flexed in the wrong direction.

Step 1: Parts and Tools

For this project you'll need the following items and tools:
1) a lighter weight 6' yoga strap - if the strap is to heavy (thick) it may not pass through the holes in the tennis ball
2) a tennis ball
3) X-acto knife with #11 blade
4) fine tip / felt tip marker
5) one thin dime
6) needle nose pliers