When my daughter and nieces were little, we'd always stay offsite at my sister's condo when going to WDW. We started a thing... When we pretty close to the WDW sign that stretches across the road entryway to Disney property, we'd start talking about our terrible vacation in boring, boring Florida, SOOOOO boring. However, as we'd go under the sign, we'd all chant, "But now, we're in DISNEY WORLD!!!" and screaming would ensue. Well, we still do that, even though DD will be 31 on Monday. Heck, I still do that, even when I'm traveling solo!
We have "family words" from when DD and my nieces were little. Some make some sort of sense... comfty clothes, millesine instead of limosine, hangaburgers instead of hamburgers, for example. Others? Doodah means yogurt, knockknee means popcorn, pocosole is popsicle. Just stuff that carried thru the years from when the kids were truly kids.
Ben and Jerry's Chunky Monkey. DD and I get a pint of this on the first night of every vacation, and sit in bed to eat it. If we have a freezer in the room, that's good, but sometimes I have to get creative to make it happen, but we ALWAYS have that Chunks-of-Monks. Also, mint Oreos. We only buy mint oreos when we are on vacation!
I don't think it's silly, and finding the right ornament is not always fun for me, but every Christmas eve I give DD an ornament that portrays something major that happened over the year. Some years it's easy, some not so easy, but it's our tradition. It's from me, to her, so it represents something from her life- like I wouldn't give her a "our family" kind of ornament, as that's not specific to her.