Apple iPod AC Travel Charger for iPod Nano, G5 Video, G4, G3 and Mini. 1st Gen (NOT for iPhone 3G)
One of the immediate things that I noticed about this product is that it is less gel-like that the original. In ways, that makes it a bit less convenient because it is slightly runnier. However, that feels much more natural and less invasive than regular Astroglide to me. It works well, and you don't need to use much of it. Highly recommended!