Great thread, I love reading all the traditions!
Our family also goes by the "as many churros as the body and wallet will allow" mantra that has been mentioned by many
Other food traditions are Mickey waffles.
On our earliest morning we usually go ride, after ride then take a beignet break and watch the River area come to life.
Our boys love Splash and will ride it again and again (rain, cold, late...doesn't matter!). At some point my husband and I will be too wet/cold/tired and go get treats (carmel apples, tiger tail etc) and sit and visit while they ride, get off, nibble said treat and go again!
We also recreate our 3 favorite family memories:
1) My oldest son and I ride Peter Pan together and as we go through the window he says "Mom, we're flying!" as if he's still 2 years old.
2) My youngest son and I ride Dumbo at night and he puts his head on my shoulder and says "Look at all the pretty lights!"
3) We ride Heimlich with both my boys in the front car. Under the watermelon slice they hug each other and turn and look back at me while I take their picture.
Very sappy I know but after 11 years of visits my boys now are the ones "reminding" me "We still need to ride____ together"
At the end of each trip we buy a pin that represents that trip. We usually go for 3+ days, so on the last day we start deciding what the most memorable parts of the trip were and look at pins throughout the day. Our last stop is always buying the pin(s) that we all agree on. Of course that usually means criss crossing the park to go back and get that perfect pin. It's a great way to put off leaving