The Welly Boot Box - ingenious combination boot jack & door-side storage for two pairs of garden Wellys (Wellingtons) - or any other boots, I should think. I could see doubling the length to accommodate a family - Also serves as a convenient seating bench
Grow sweet strawberry in a vertical PVC tube is great solution for small garden or yard. Vertical planter will save you a lot of space, at the same time keep plants out of reach from garden insect pests AND enable you to switch to hydroponics.
Green craft project idea - Repurpose a tuna can and clothes pins to make a flower pot or candle holders. Would be cute to do with a kid to work on fine motor skills. Would be cute for grandparents or as a Mothers Day gift! =) mothers day present :)