Poppet work, charms and visualisation magic all fall into the non candle category. Spell work can actually be very simple - my apprentice uses a piece of paper with a clock face to influence time when she's bored at work and it works very well for her. Beware those spell books that say you have to work magic a certain way, they generally lack creativity. Magic can be worked just about anywhere and with just about anything and don't let any witch or spell book tell you otherwise!
Image http://www.sxc.hu/photo/1409489 (gorand1983)