Many people ask for bowls to accomodate their shaving soaps. Many people use Anchor Hocking but the specific item number is 82628. A Google search will give you many results. They're pretty cheap at $7-$8 for four bowls w/lids. It fits every soap I've ever bought. For some of the triple-milled soaps, you have to insert the soap upside down and push but it fits. I thought I'd pass it along.
The example below is with a GFT soap.
The example below is with a GFT soap.