I bought the L'Occitane bowl as it is the only bowl my wife will allow to be kept on the bathroom counter, it really is well made and beautiful to boot. I would think that the empty soap jars available at WCS would work, I bought some for my MWF.
https://www.westcoastshaving.com/Frosted-Low-Profile-Jar-with-White-Domed-Lid_p_1680.html