I propose that you add some simulcastle-like

activities to your anniversary agenda, assuming someone on the east coast feels like getting up and being in a hot crowded Magic Kingdom on the 17th, which they might not.
Proposed agenda items might include:
- Teacup spinoff
- Simultaneous mirror image rides of Big Thunder Mountain
- Matterhorn and "dark matterhorn" (i.e., Space Mountain)
- Watching of cartoons in the Main Street Cinema and watching Disney commercials in the shop that used to be the Main Street Cinema
- Peoplemover Ride/Peoplemover Walk of Remembrance
- Mark Twain (toot toot!)