Happy 18th birthday. Congratulations, we've both been legally adults, able to Apparate and drink, and had the Trace removed for a year now. I know that this isn't exactly a sentimental gift, but thought you'd appreciate something you could actually use. The baking is good.
[In the parcel are this note card set (password protected, Theodore needs to tap his wand on the box three times to reset it from its default) and a chocolate mint cupcake from her father.]