I am kind of new to straights so I may be passing along info you already know. Many of my straights have no, or very poor, cases. I was looking for a cheap solution and thought toothbrush cases may work. The round ones are a problem but the oblong ones, with a bit of Styrofoam or bubble wrap place in the ends, seem to work well. Dollar tree has them... 2 cases for a dollar. All my razors fit except the Rigarazor 7/8.
Attachment 312664