For the spheres, I used styro balls, jelly beans and a hot glue gun:
The topiary supplies included styro cones, terra cotta pots, foam, Easter grass, feather boas, spray paint and a wooden dowel, which I sprayed green and cut in half:
The finished products look like this:
I also made Egg Topiaries
The $49 Martha Stewart version (pictured below) was my inspiration. Mine cost less than $15 each.
I started with carve-able eggs from Michaels, small urns, foam, dowels, silk hydrangeas, and pearl-headed pins:
Here's the end result:
Here's Martha's version:
UPDATE:
I decided to change my topiaries because I wanted a more uniform look, with eggs of the same color. Here's the new result:
