A fondue pot is lots of fun and once you own one you'll find excuses to use it. However, if you're not ready to buy one just yet, you can use a heavy bottomed saucepan set on a trivet with a low flame (i.e., a can of sterno) underneath. Be sure to place the whole setup on a flameproof plate or tray and keep a really close check on things. Make absolutely sure to keep children away from the flame and all napkins, cloths, and other table linens away as well. Never leave an open flame unattended.