Over the years, he has worked in a variety of fields in comercial art. While at the University, he worked as an editorial cartoonist for the campus newspaper the Minnesota Daily. He worked in a similar capacity for several other local newspapers. He designed games and puzzles for the Great American Puzzle Factory. He has also done theatrical set design and portraiture.

Hoppe has produced hundreds of hand painted watercolor cards for the Guthrie Theatre Bookstore and dozens of other gift and bookstores in the Twin Cities area. His watercolors have been displayed and sold at a number of galleries in and out of the Twin City area, including: Uptown Art - Calhoun Square, Minneapolis, MN.Winchester Gallery, 50th and Xerxes, Mpls., Fast Frame Galleries, Roseville and Woodbury, True North Gallery, Kearsage, Michigan, Zachary Gallery, International Market Square, Mpls, Pierce Art and Frame, Golden Valley, MN. In May of 2003 Mr. Hoppe was invited to the island of Tahiti. The directors of the Paul Gauguin museum had invited six internationally recognized artists to Tahiti for a celebration to honor the passing of the French master 100 years ago.After a showing in the museum four of Mr. Hoppe's watercolors remain as permanent works of the Gauguin museum.