Oh, Connie! I am so sorry for your family's sad loss. May you find comfort in memories and strength in the love of family and friends.
I am glad that your family will have the chance to be in the
Walt Disney World bubble. When my mom passed away, we found comfort in being insulated by the Disney "magic." I hope it has the same effect for your family.
While there is no way to leave a permanent memorial at Walt Disney World, there are things you can do to honor your husband's memory. Many families wear t-shirts with their loved one's picture on them, so it helps them feel their loved one is near. I have also seen people wearing buttons that are available at guest services that say they are celebrating their loved one. I'm also aware of one young mom who lost her infant son, but she took a stuffed animal from among the baby's things and had her picture taken holding it with the characters so that she had a permanent memorial for herself.
If you wish to do something permanent, there is an organization not too far from Walt Disney World. Give Kids the World Village is a place where children who face life threatening illness can go on their wish trips to get away from the medical confines of their illness for a few days. The Village sells memorial bricks - similar to what you will see at the
Magic Kingdom - that are used in the gardens and pathways around the village. You can purchase one on their website and have it engraved as you wish.
Know that your family will be in my thoughts.
Anna