There is and it's been recommended. I even sent a pm to someone about it but can't remember what it was. I was looking ahead and the time is now. Robyn has it on one of her elbows, so I'm glad you started this thread.
Misty- Samoyed Mix, Tannor- Golden Retriever CGC
Robyn- GSD CGC, TC, Midnite-GSD CGC,TC, Brennan-Golden Retriever CGC, Batman-Husky/Greyhound , Apollo-GSD