You can try a soaking followed by encouraging the snake to slither face first through a rough, damp facecloth gripped in your hand. This often works beautifully to get rid of the occasional stuck eyecap, tail tip or other bits that stuck.
When it comes to eyecaps just be VERY careful about messing with them. I've seen advice about tweezers and tape that make me flat out shudder! A gentle q-tip is likely fine but just be very, very careful. Most times that eyecap will come off on the next shed if you get the humidity bang on so mess with it as little as possible is usually best for the less experienced keeper. Do always check that any fully encircling shed (especially the tail tip) has come off cleaning though.
Here's a couple of great links for you about shedding and how to handle a less than perfect shed.
http://www.ball-pythons.net/forums/s...ad.php?t=28794
http://www.ball-pythons.net/forums/s...ad.php?t=43403