Organizers say the four-day International Halloween Costume and Party Show and the National Haunt and Attractions Show at the Sands Expo Center features more than 700 exhibitors with more than 10,000 people from 47 countries browsing the wares before the convention ends, the Las Vegas Review-Journal reported Tuesday.

Exhibitor Scott Bibus said Monday $170 would net a buyer a skinned horse head replica. A replica gutted dog hanging from the ceiling was going for $60.

Meanwhile, Dapper Cadaver of Los Angeles was selling replica human and animal fetuses in jars while convention-goers walked the floor in elaborate costumes.

"Something like 20 percent of people in the U.S. will attend a haunted house," said Joe Thaler, chairman and chief executive of TransWorld Exhibits, which runs the Halloween convention. "It can be very valuable."