Final Project Update: I decided to multiple the bottom peg size by 1.075 to make it a little bit easier to join them together without as much sanding. Also, I added holes running from the bottom to make them lighter, and to make them sound more like Legos when I held a bunch together and dropped them. I was aiming to make this piece indistinguishable from a traditional Lego until someone was actually holding them together and tries to put them together. I think I achieved that goal with this piece after making the aforementioned changes to my design.