I thought this was dumb until I realized it was awesome: Sony sells a fashion cleaning kit for the Vaio P, complete with two grades of microfiber cloth and a makeup brush for more rigorous dusting. The model number of the makeup brush is Sony VGP-CG100.
Jenn Lee reviews it at Pocketables and gives it a thumbs up!
It may seem ridiculous that Sony makes something like this (and that I bought it), but it's a good value for the price, the cleaning tools are of high quality, and everything nicely fits into the case for easy storage and transport. It's also not bad looking and hey, for a Sony fangirl like me, I can't complain about those Vaio labels either.
Review: Sony Vaio PC cleaning kit (VGP-CG100) [Pocketables]