Either the condoms are a huge hit, or the Center for Biological Diversity is having a hard time getting rid of them. 

The environmental group is set to give away another 50,000 of its condoms featuring endangered species this month and is looking for volunteers to help with the distribution. 

The group has been giving away the condoms since early 2010 as part of its 7 Billion and Counting Campaign, designed to bring public awareness to human population growth and the extinction of species. 

Here’s a sampling of the condoms. More information can be found here.