How to Turn old Teacups and Saucers into Garden Planters: Drill a hole in the bottom of the teacup. This will allow for water drainage. To do this, place a small scrap of wood under the teacup base, making sure the teacup rests on the wood. Use a tungsten tipped drill bit and wear safety goggles when drilling. Ceramic and porcelain can easily shatter, so use a slow drill speed and very little pressure. From DIYnetwork.com
Even in the cold winter months you can have a beautiful mini garden on display, under the looking glass. Fill a round tray with spring green moss and cover your pink primroses tucked neatly in a flowery teacup (or whichever bloom you choose) with a standout glass cloche.