I can understand the hesitation for men and teens not wanting to wear costumes however, Disneybounding might be your answer. You can pick up a few things if needed and ask them to wear it without mentioning they look like a specific character. Here's a great link to help you get started:
Disney Bounding Boundries...
Also with Father's Day right around the corner Sunday, June 17th you should be able to score some great savings!
If my son & husband decided not to dress up I still would and make sure I did a ton of solo magic shots to boot! Nothing like giving a calendar of their favorite person for Christmas with a note "See what you missed!"