I bought some Nuforce NE6 IEMs a couple years ago, with the help of this wonderful forum.  The stock tips are now starting to bother me, they don't seem to fit as well, and they also pop off the iem quite easily.   Can someone recommend some better tips, comply are about the only ones I have...

I am looking for some decent quality IEMs for my creative Zen player to use at work, when cutting the grass, etc. One of the problems I have is that when I am at work, I would like to hear what is going on around me at least a little bit. But when I am cutting the grass, I don't want to hear...