Glass worker Brian Owoc blows into a blowing tube while creating a glass doughnut pipe in his Portland studio on Monday, Aug. 13, 2018. Owoc sells these pipes to collectors across the country, some of which fetch thousands of dollars.

Glass pipes incoporating doughnut designs created by Portland glass worker Brian Owoc. Owoc sells these pipes to collectors across the country, some of which fetch thousands of dollars.

Glass worker Brian Owoc warms up a coil pot while creating a glass doughnut pipe in his Portland studio on Monday, Aug. 13, 2018.

Glass worker Brian Owoc blows into a glass tube to shape a doughnut pipe in his Portland studio on Monday, Aug. 13, 2018.

A glass pipe incoporating a doughnut created by Portland glass worker Brian Owoc. Owoc sells these pipes to collectors across the country, some of which fetch thousands of dollars.

Glass worker Brian Owoc presses down heated glass to start the shape of a doughnut pipe in his Portland studio on Monday, Aug. 13, 2018.

Glass worker Brian Owoc shapes a doughnut pipe in his Portland studio on Monday, Aug. 13, 2018.

Glass worker Brian Owoc warms up a glass point while creating a glass doughnut pipe in his Portland studio on Monday, Aug. 13, 2018. Owoc sells these pipes to collectors across the country, some of which fetch thousands of dollars.

Glass worker Brian Owoc melts in "frosting" onto a doughnut pipe in his Portland studio on Monday, Aug. 13, 2018.

Glass worker Brian Owoc melts "frosting" onto a doughnut pipe in his Portland studio on Monday, Aug. 13, 2018.

A nearly finished glass doughnut pipe created by glass worker Brian Owoc in his Portland studio on Monday, Aug. 13, 2018. Owoc sells these pipes to collectors across the country, some of which fetch thousands of dollars.

Glass worker Brian Owoc melts in "frosting" onto a doughnut pipe in his Portland studio on Monday, Aug. 13, 2018.

Glass worker Brian Owoc shapes a doughnut pipe in his Portland studio on Monday, Aug. 13, 2018.

Glass worker Brian Owoc blows into a glass tube to pop a hole in a doughnut pipe in his Portland studio on Monday, Aug. 13, 2018.

Glass worker Brian Owoc heats up a doughnut pipe in his Portland studio on Monday, Aug. 13, 2018.

A glass doghnut pipe created by Portland glass worker Brian Owoc. Owoc sells these pipes to collectors across the country, some of which fetch thousands of dollars.