This is a function only available to Knife Showcase featured members. See the "Get Featured" tab at the top nav bar for more information about becoming one.

If you're a featured member, click on the photo you want in the home page slide show. In the next screen, click "Feature" beneath the photo description. Wait a few minutes, and it will appear in the home page slide show.

The slide show will be cleaned out periodically by me, so it won't be featured this way forever. But it's another way Knife Showcase offers great exposure for its featured members.