DIY/Cheap retractable pendant hanger?

[kwirky]

I'm getting a PFO pendant light, probably, and I'm wondering who out there made their own retractable hangers, or found one for a great price not meant for the aquarium hobby? I would like the ability to quickly raise and lower my lights, as I've heard it's a great feature of pendant lights, from tank maintenance, to raising it to prevent bleaching new corals.

Any ideas?

[kwirky]

ok I figured out a pulley design. Anyone know where to buy pulleys in canada?

http://www.esopenko.com/images/aquarium/nano/pulleydesign.gif

[Richard_Dicosimo]

Home Depot, Totem, Canadian tire, and probably rona will all carry pullys in thier hardware section.

Richard