I made a stand for my Hobby knife/ Xacto knife that displays the blades and knife in a safe and easy-reachable way. My Knife is magnetic so that you can pull the blade off from the front but even if yours is not, the not-cutty sides of the blades can safely be grabbed from above. The pins that hold the blades are kinda snug so depending on your settings/blades/preferences you could also sand it lightly for a more easy fit.
Printable without supports but you should print the inner perimeter first. I included the f3d file if you want to change something