I do not have any photos right now of the finished tree because I cannot travel through time. I will submit sideshow on the growing tree when it starts growing.
What you need:
Something that will cut a Styrofoam cup
...and water .-
Step 1: Find a Seed
To harvest the seed, simply cut the avocado in half ( widthwise or lengthwise,it does not matter) and GENTLY scoop out the seed (with a spoon, dork). Be sure not to severely lacerate the seed in the process of cutting the avocado in half.