Dollar Store Dupes for Silicone Makeup Brush Cleaners

Purchased by Me 
Up until a few years ago, I didn't even know that silicone brush cleaners were a thing. For a long time now, I've been washing my makeup brushes by mixing some warm water and my favorite brush cleaner (Dr. Bronner's Liquid Soap) in the palm of my hand, and swirling my brush until the water runs clean. But after a few years of reading about the various silicone brush cleaners on