These are new parts made from reclaimed oak being used on a timberframe construction. Jim turned the acorns and I added the cross-hatching. The parts are approx. 9 inches in diameter. There's a video, when I find it, I'll include it here.
View the embedded image gallery online at:
https://www.acmfox.com/7-wood/12-big-fat-acorns.html#sigProIdc506882a3d
https://www.acmfox.com/7-wood/12-big-fat-acorns.html#sigProIdc506882a3d