Music is number one. Play me something I can't hear on the radio and you have a head start on my brain.
Gadget-type toys: Camera phones and keychain crap.
Shiny and/or stretchy string.
Politics depending upon the enthusiasm/knowledge ratio.

[{IDM/Braindance}]: (Aphex Twin/AFX/Alex Blackford/Brad Strider/Caustic Window/Gak/Power Pill/Q-Chastic), (Squarepusher/Chaos AD), (Amon Tobin/Cujo), Black Lung, Bogdan Raczynski, Capitol K, Chris Clark, Clint Mansell, Correctional Facilities, DJ Shadow, Dykehouse, Emotional Joystick, Hrvatski, Jega, L'Usine, Plaid, Ochre, Ovuca, (Luke Vibert/Wagon Christ), Autechre, Tim Tetlow, Bit_Meddler, Joseph Nothing...
[{Industrial}]: (KMFDM/Slick Idiot/MDFMK/Schwein), Grendel, Ministry, Pigface, Revolting Cocks, (Skinny Puppy/Ohgr/Cevin Key), (Front 242/Birmingham 6, C-tec), (Front Line Assembly/Noise Unit/Delerium/Intermix), Velvet Acid Christ, Suicide Commando, Wumpscut, Pig, (Throbbing Gristle/Psychic TV), Apoptygma Berzerk, Crocodiile Shop, Arzt + Pfusch, Funker Vogt, Interrogation, Cubanate, Cenobita, Wolfsheim...
[{Techno/Goa}]: Orbital, Future Sound of London, Sasha & Digweed, Meat Beat Manifesto, Distance to Goa, Vibrasphere, Infected Mushroom, Juno Reactor, Daft Punk, Paul Van Dyk, Goldfrapp...
[{Noize/Hardcore}]: Venetian Snares, Hellfish, DJ Producer, (Alec Empire/Atari Teenage Riot), 5f_55, Converter, Tarmvred, Xingu Hill, Doormouse, Soundmurderer, Somatic Response, Needle Sharing, Feindflug, Hypnoskull, (Imminent/Synapscape), Omar Santana, Kid 606, Ah Cama-Sotz, Accessory, MS Gentur, Soman, Winterkalte...
[{Drum & Bass/Jungle}]: Adam F, Aphrodite, Bad Company (EIB), Dieselboy, DJ Icey, DJ Dara, Dr. Mario, Grizzly, Freaky Flow, Flipside, Klute, LTJ Bukem, Stevie Hyper D, Roni Size, Kenny Ken...
[{Hip Hop/Rap}]: Snoop Dogg, Dr. Dre, Nate Dogg, Jedi Mind Tricks, Non Phixion, Murs, Slug, Eyedea, CMA, Kanye West, Obie Trice, Eminem, D12, Nas, Wu-Tang, Missy Elliott, Nappy Roots, Pharaoh Monk, Xzibit, IAM, Common, Mos Def, Dilated Peoples, Aceyalone, MC Chris, Outkast, The Roots, Blackstar, Talib Kweli, Prefuse 73, Beans, Gangstarr, Too Short, Deltron 3030, Bone Thugz & Harmony, Beastie Boys...
[{Classic Rock}]: Bad Company, Bob Dylan, Bob Seger, Deep Purple, Eric Clapton, George Thorogood, Golden Earring, Heart, Jefferson Airplane, Lynard Skynyrd, Beatles, Jimi Hendrix, Grace Slick, Heart, Rolling Stones, Grateful Dead, Pink Floyd, Peter Frampton, Santana, Eagles, The Who, War...
[{Soul/R&B}]: Ray Charles, Marvin Gaye, Stevie Wonder, Al Green, Jim Croce, Barry White, Frank Sinatra, James Brown, The O'Jays, Diana Ross, The Four Tops, The Whispers, The Isley Brothers, Luther Vandross, Patti LaBelle...
[{Punk/Ska}]: NOFX, Phunk Junkeez, The Clash, Sex Pistols, Violent Femmes, Pennywise, Mustard Plug, Undeclinable, Ramones, (Operation Ivy/Rancid), Squirrel Nut Zippers, Green Day...
[{Funk}]: Isaac Hayes (RIP), Parliament Funkadelic, Talking Heads, James Brown, Curtis Mayfield, Africa Bambatta...
[{Rock/Metal}]: Deathklok, Secret Chiefs 3, Dilinger Escape Plan, Pantera, Fear Factory, Metallica, Strapping Young Lad, Marilyn Manson, Tool, (Black Sabbath/Ozzy Ozbourne), (Rob/White Zombie), Mr. Bungle, Fantomas, Steroid Maximus, Foetus, Opeth, Dimmu Borgir.
[{Classical/Composer}]: W.A. Mozart, J.S. Bach, Rimsky-Korsakov, Tchaikovsky, Maurice Ravel, Danny Elfman, Yoyo Ma, John Williams...
[{Reggae/Dancehall}]: Damian Marley (also: Steven, Julian, Kymani, Ziggy, and certainly Bob), Macka B, Gregory Isaacs, Capleton, Steel Pulse, Sizzla, Vybz Kartel...