If you know anything about teachers, then you know that they love literature and they love to drink! This could be the best gift they have ever received.
If the garden is not big enough for the big smoker barbecue, or maybe you don't even have a garden but just a balcony, Small BBQ Smoker Grill will give you all the smokiness and taste you want, but it will not take too much space. It is also very convenient if you decide to have some BBQ on your field trip or ...
If your girlfriend enjoys taking a few-hours-long baths, then you should consider getting these awesome galaxy bath bombs just for her. Turn her ordinary bath into the totally different and galactic experience.