Cupid's Span bow elements are vinylester resin and oriented strand E-Glass fabric reinforcement over PVC core. Composite skins are thermally isolated and bonded to the structural steel armature, and the arrow shaft is extruded type 304 stainless steel. Feathers are E-Glass reinforcement in unsaturated polyester resin with base gelcoat and automotive urethane topcoat. The sculpture was commissioned by Donald Fisher of The Gap for inclusion in Rincon Park, directly across from the new Gap headquarters building in San Francisco.

The Balzac Petanque FRP sculpture is made from female FRP molds created by digitally scanning artist's models, enlarging, and CNC milling foam patterns. This piece is comprised of unsaturated polyester laminating resin under an integrally molded gel coat that has been covered with a 2-part automotive urethane clear overcoat on top. The sculpture has invisible connections made of stainless steel and FRP.

The Dropped Cone piece was commissioned by Neumarkt Galerie and is in Cologne, where it has been installed since 2001. The pair placed the work on the top of the shopping mall due to the congestion of the surrounding streets. The cone is turned upside down and is reminiscent of the same motif appearing in front of ice cream parlors, typical for Cologne. They chose the cone form because of the four letters of the term that can also be found in the city's name and the artists' articulation of consumerism.

Flying Pins is one of 15 large scale projects fabricated by K&A for the artists’ Claes Oldenburg and Coosje van Bruggen. The pins seem to fly through the air but employ an innovative steel structure with slip-together invisible connections.

The Inverted Collar and Tie, located in the heart of Germany's financial district on Platz der Republik (Square Of The Republic), is a highly imaginative artwork created with steel, FRP, and painted with polyester gelcoat.

The original Houseball, made for the performance Il Corso del Coltello, was based on the idea that one could gather all one's possessions in a large cloth and tie them up in the form of a ball that would roll -- thereby making any other transportation unnecessary -- to its next destination.