The 2 ramp pieces were cut from 1/4 inch plywood. They are 14.5" long, 3" tall at the top end of the ramp, 1.5" at the lowest part of the dip. I made one and traced it on to the plywood to make the other.
The middle piece is a 12" 2x2. That's it. No fancy instructions haha
Sand everything to make rounded edges everywhere that will come in contact with the egg.
I screwed mine together because I'm impatient. If you glued and clamped it would be just as effective and you'd have 2 pretty sides. I left the front of the ramp open so I could grab eggs from under/over or from the sides.
Stain or paint, but either way make sure you seal it really well. You could caulk the part where the ramp wall meets the 2x2. Just in case of emergency