The parade floats shown were built by Studio Concepts, Inc. for various sponsors, and were designed by other employees of that company.
Demetri designed and engineered all mechanical systems, including hydraulic, electrical, and structural, fabricated mechanisms, and programmed control computers.
The music presented here accompanied the floats during the parade. In the case of the first float shown, the mechanical systems were electronically linked to the soundtrack so that movements were synchronized with changes in the music, as shown in the video.

The Singing Christmas Tree structure was built by Studio Concepts, Inc. for One Voice Productions. Gene Dent designed tree structure concept.
Demetri managed project, supervised fabricators, and designed and built all mechanical components of tree structure.

The raft from Big River was designed, built, and operated by Demetri for The Musical Company. The log facades shown were created by Elecia Beebe.