You are ordering a lot of 100 "buckyball" pods. These come from Sweetgum trees. They also make a great crafting supply. They are about 1-2"
As nature does, there will be variations in color, size and texture. They are "rain washed and sun dried" in the state we package them.
These are very easy to work with a hot glue gun and some Styrofoam. We did a Xmas tree which could be spray painted or further decorated. Friends of our have added a $5 LED light kit and sold these trees for 20-25 dollars.