The Chia herb garden. It's a long-standing joke in our house that you have to get at least one silly, as-seen-on-tv gift and that was Bella's this past Christmas. She jumped through hoops to be able to do her planting and took the job very seriously. (And she made sure to wear her "shade hat" to protect her eyes even though we'd be inside [see early comment on the pollen].)
May the next six months or so -- which are guaranteed to be miserably hot and buggy -- be as sweet and fun as our little afternoon of planting was.