I got this reflective attachment I can put on Bella's harness for after dark. Which is good for when she needs to go out after dark because she usually shoots off like a bolt of lightning when she gets to go outside.
If you have a Walmart nearby I was just there and they have a leash with the reflective material and there is a light attached to the handle on the leash so you can keep track of your yorkie. I think it's a new thing they are starting to carry at Walmart because they had a big display of car seat protectors, car seats, travel bowls, leashes, collars etc