So I have been doing IHC on sections mounted on glass slides for a while. Lots of advantages to this, but one disadvantage is double labeling of proteins in single neurons. For this part of my work I have to move to IHC in free floating sections. Have not done this since I was a graduate student. I am having a tough time finding wells designed for free floating sections. Before I embark on making my custom wells, is there companies that specifically sell boats and holders for free floating IHC?