Floral Arrangement--Hyacinths, usually available at floral shops in December, offer a break from traditional poinsettias. Display a single hyacinth in a glass cylinder thats slightly taller than the bloom. Stabilize the stem in glass marbles.
Helium filled balloons tied to weights in pool. If you want to create the illusion of floating balloons use fishing line which is virtually invisible. (IDEA- Could also ADD some glow sticks so that the balloons GLOW over the Pool at NIGHT!