Hi Trevor! Thanks for bringing your question to planDisney.
I see your trip is just around the corner. You must be excited! As you're packing, you might want to stash some Global stamps if you're planning on using
mail services while at Disneyland Resort, since they aren't
sold on-site. You can mail letters and postcards from
Disneyland Resort Hotels at the Front Desk, but what's even more fun are the iconic pull-down park mailboxes located throughout Disneyland Park and Disney California Adventure Park. Trying to spot them all is a park scavenger hunt. They're designed to
fit the theming, so they look a little different from place to place. I might even have a backpack that looks like a Disneyland Resort mailbox!
If you use one of those mailboxes, know that your letter or postcard will be mailed not from Disneyland Resort but from a local post office, and unlike Walt Disney World Resort's ink stamp that indicates it originated on-site, there is no such offering at Disneyland Resort. It doesn't hurt to ask a Cast Member at the desks in shops or at
Guest Relations if they happen to have anything like a Mickey stamp or sticker on hand, but since there is no official ink stamp, I can't guarantee you'll find exactly what you're looking for.
Have the happiest trip!
Elizabeth