Whether or not you like the pieces in the pictures, its good to have correct information.
To that end:

The giant metal figures were part of a large scale installation, Crude Awakening, which was at Burning Man 07. The makers of those are Karen Cusolito and Dan Das Mann, and a crew of some 100+ people.
Four of them were loaned to the Crucible for their fire arts festival last summer. Although the Crucible is wonderful, Dan and Karen don't work for them- they have their own giant warehouse. 3 of the 8 figures will are at Maker Faire this weekend- one will be running flame effects.

The tripod thing is a piece by Michael Christian, which made its debut in Burning Man 06, and has appeared at several events since then.

-full disclosure: I worked on the Crude Awakening piece, and I love giant (and small, medium and large) metal art. But I think everyone is entitled to not like things.