A cloche over a cake stand makes a fashionable ad hoc terrarium. -- Lay half an inch of aquarium gravel on the cake stand for drainage. -- Sprinkle with fine charcoal, then top with a light, moist, peat-based packaged potting soil. -- Set a jewel orchid, arrow-leaf ferns, and 'Chocolate Stars' cryptanthus inside. -- Cover with cloche, brushing away any remaining gravel off the cake stand.