Can you tell me if my prop is allowed at FAN EXPO Boston? FAN EXPO HQ March 08, 2018 16:30 Updated Follow We are unable to answer specific questions regarding props and costumes. Our trained on-site security and Boston Police have final approval. Please read the Props Policy. Related articles Will CGC or CBCS be at FAN EXPO Boston? Can I upgrade to a Premium or VIP Package? Comments 0 comments Article is closed for comments.