Clip your lights before attaching them to the building.

Make sure the light is secure in the clip. This may mean repositioning it within the clip.

"Quaa-aa-aa-aaa-aaaack" goes the duct tape.

Temporarily secure the clips to the kneewall with high-quality duct tape. Do this before it gets cold or you'll have to warm the kneewall with a torch

Squirt a glob of all-weather caulk into the gap in the clip, thus securing it to the kneewall.

Repeat steps 1-5 150 times, or call a pro.

View of installed LED C7 lights atop a building in downtown Hebron, NE

View of installed LED C7 lights atop a building in downtown Hebron, NE. For perspective, note that the red lights are spaced 12" apart.

This is a normal plastic Easter egg.

Drill a hole in the bottom of the egg large enough to accommodate the base of the bulb plus a little extra. This will take some experimentation.

The goal is to have the shoulder of the bulb hold the egg in place. Basically, the egg shell is pinched between the bulb and the rim of the socket.

The color bulb you choose will affect the lighted color of the egg. This sounds obvious at first, but a Cool White bulb will look different from a Warm White bulb. Try different colors til you're satisfied.

Easter Egg lights on display

You could even try different colored bulbs, to make the egg's color even richer.