I need another pencil case. As it is, I still have around 100 of them that aren’t in a case, and I’ve gone and added more. See all that lovely info on the Prismacolors? It’s stamped metallic, and if you do microwave to repair a core, it will go up in a pretty shower of sparks, so you’ll no longer have it. I prefer to keep my info intact, including the colour names. The Staedtler Noris Colour are lovely, much like Cretacolor, harder than the Prismacolor, they apply well, and keep a good point. The problem with sets is that there is zero identification on the pencil, no name, no number, so if you are looking to replace a specific colour, you’re rather screwed into buying a new set. I did buy the Prismacolors off the rack, so I’ll see how many broken cores I have to deal with.