While on set we encountered a lot of issues with microphone noise from the radio mics.
For the scene, the male lead was wearing a shirt. The microphone was rubbing against the material on the shirt causing a lot of unwanted noise.
We looked into different methods of removing this noise. Tape was one solution that we found very achievable.
This article here has a video showing some different ways to help not just hide the mic but keep it away from the material.
http://nofilmschool.com/2014/10/7-great-techniques-hiding-lav-microphones
Joe and I bought multiple various types of tape from Packing tape to medical tape. We found an article on Reddit that mentioned that the tape had to be a smooth as possible.
The medical tape after some trial and error worked out really well.
We were happy with the result.