If you are referring to open pour/hand pour aluminum molds there are several companies to look at.
https://anglingai.com/shop-open-pours/
http://www.basstackle.com/mobile/Category.aspx?id=125
https://epicbaitmolds.com/search?type=product&q=Open+pour+
https://www.enforcerbaitmolds.com/hand-pour-molds
https://fatguysfishing.com/open-pour/