Check these out: These are my zenblocks and I love them. They are handmade from sustainable urban harvested walnut in a small town in Idaho. If you are really patient you can create an arch. I actually have two sets. I love to play with them. My daughter is not very good about sharing her blocks - now I have my own. I share mine though. You should totally have your own set to build with, admire, and share too. You can buy zenblocks on Etsy.
Speaking of Etsy, I have not totally forgotten my own little shop. Keep your eyes peeled for a special new listing.
Neat blocks, Laura!