Used hobby knifexacto blade keeper
Free     Myminifactory     fixumdude

Used hobby knife/x-acto blade keeper

Small box to safely hold several used xacto or hobby knife blades until youre ready to throw them away Holds quite a few 11 or the larger 2 blades Keeps me from trying to figure out how to dispose of the blades one at a time ...

similar models —

Used hobby knife/x-acto blade keeper alternatives
2 Hobby Knife Cap
fixumdude