Hi ! Going on our 2nd Disney cruise on the dream & was wondering... Can you put a hole punch in the KTTWC and still have it be valid? We are traveling with 2 Tweens, 2 teens & a couple of older bachelor gentlemen who might find it easier to attach the card to their belt loop instead of a lanyard ( which might get left somewhere.. Lol! ) wish I could hole punch the wave phone too but that is another issue! Thx for any info!