Your presence is present enough, but if you're feeling particularly generous the couple have registered for various items through Zola and Target-just follow the links!
Kathryn and Tim have also set up a "New House Fund" fund that can be contributed to through Zola below.
The couple has also registered for a few items including book, games, and cleaning supplies at Target which can be viewed by following this link!
https://www.target.com/gift-registry/gift/Starr2018