The next best thing to a real canopy of leaves is this wonderfully whimsical parasol from Droog. The lace pattern casts ever shifting shadows on sunny days & a little golden bird perches on top. Also available in white.

This parasol is pretty, whimsical, and adding this to even the most urban patio will give you the feeling of lounging under the shade of a big tree! I prefer the white version's airy lightness.