It just says 'bring this admission ticket' on ours, no mention of ID. Ticket, calculator, pencils, watch, and optional snack. That's the complete list. :-) It's a full sheet of paper and says 'Admit One' along the side. My kids don't have IDs at all for school or otherwise.

My question is whether a decades-old basic Casio scientific calculator is sufficient, as it won't be on any lists, prohibited or not. Ha.