I can only assume a high % rubbing alcohol and some cotton/wiping cloth would do the trick.
Got: Atari 2600, Atari 7800Pro, Commodore 64, Odyssey 2, Sega Master System, NES, Genesis Models 1-3, Nomad, Game Gear, Sega CD Model 1, Sega 32x, SuperNES, GameBoys, GameBoy Pocket, GBC, Sega Saturn Model 2, GBA, Nintendo 64, Playstation, Sega Dreamcast, Playstation 2 Slim, Nintendo DS Lite, Xbox 360, Gamecube, PS3 Slim
Clean it out with alcohol wipes or rubbing alcohol. Wipe off all of the dust first with a moist towl. Congrats on the Jag! I have had one for months and you already have more good games than me.
owned: Atari VCS, Intellivision, ColecoVision, NES, NES2, Sega Master System, Turbografx-16, Genesis/Sega CD Model 1, Genesis/Sega CD Model 2/32x, SNES, Atari Jaguar, Virtual Boy, GBA, 3DO, Saturn, Playstation, PSone, N64, Dreamcast, PS2, Gamecube, Xbox, PSP, Xbox 360, Wii, PS3
wanted: Cd-I, Neo Geo AES