Dismantle the parts containing these magnets and glue them to the back of a piece of wood. Then, screw it to your wall of choice and attach your knives using the magnets.
Once the insides have been removed, lay down some landscaping fabric. Then, wash it, fill the case with soil, and find an appropriate plant for your space.
Although you may not be using your old floppy disks to store important data anymore, you can still get some use out of them by turning them into a desk caddy.
Choose the most appropriate glue for the job and ensure that the floppy disks are aligned to create a storage solution to help keep your workspace more organized.
You don't need any expertise in computing or electronics for this idea. Simply use your creative side and create artwork using any piece of old equipment you have.