The Twelve Days of Christmas with Architects: Day 3

On the third day of Christmas, by a cove there to see,
three black pens,

two Lego Sets,

Fallingwater Lego Set. Photo from Lego website.

Farnsworth House Lego Set. Photo from Lego website.

and mold plywood for an Eames tree.

Christmas tree made by molding plywood chair legs by Charles and Ray Eames.
Circa 1946. Photo from Library of Congress website.