Mirror block off plates

A while ago, I remember coming across mirror block off plates for the F3 and the F3S. I reached out to the maker and asked if they were going to make some for the F3T/L. They said yes, but I haven't heard from them in a while and now I can't find a link to the block off plates at all. I purchased the handlebar riser kit for my wife and it solved her comfortability problem, but it put her hands right in line with her mirrors. I'd like to get the spyder cuffs and some new stalk mirrors for her to use, but I would also like to remove the existing mirrors (the 2019 F3-L doesn't have turn signals there) and put block off plates there. Does anyone know where to get block off plates so I can remove the mirrors?