I ordered some black XL cartomizers so I could make a tank and whatnot and I figured they would have stickers, like the regular cartos I have been getting, and I could just peel the stick off. Well they don't have stickers they are painted black 
Can I still use them?
Also what is the easiest way to punch a hole in the carto without using a carto punch?
I have seen people use screws and I saw one guy in the syringe tank mod video tank a dremel and cut a slit in the carto instead of punching a hole.

Can I still use them?
Also what is the easiest way to punch a hole in the carto without using a carto punch?
I have seen people use screws and I saw one guy in the syringe tank mod video tank a dremel and cut a slit in the carto instead of punching a hole.