go to a local outlet store like big lots or dollar tree. we have a place called Ollie's that had them for 1.29 for 6' cords. i talked the manager into dropping the price to a dollar because i bought all 80 something cords that he had. that would be the fastest way. a roll of spt wire and some vampire plugs also come in handy for making your own custom cords, or you can just cut your extension cords and splice in some spt wire to make it the length you need. always solder your connections and shrink wrap, as well as make sure you tin the wires with solder before you mount them in the express. only takes one stray strand to short and blow a triac. while on that subject, might want to put a spare parts order in with mouser like triacs, fuses, etc... nothing like having something go down in the middle of show time and have to wait for an order to come in the mail. yes, it will happen to you too! lol so be prepared.