snapdragonxxx
A small thin bit of aluminium then!
Aluminum (Aluminium for you Brits) is a non-ferrous metal. Like copper it is not magnetically attractive.
Rare-earth magnets have a ery strong magnetic flux, but it is very short ranged (compared to, say magnetite or magentized iron).
In areas of high magnetic flux, aluminum can be repelled by a magnet (it really isn't, that's a side effect of the electrical current induced in the aluminum at 90º to the magnetic flux lines.
What you might be able to use would be some fretwork from some stainless steel PE. Most stainless steel is non-magnetic, but the flux on a rare-earth magnet might be enough to "grab" some.
All is not lost, though. You could use a bit of broken measuring tape, if you found a skinny enough one (check it with a magnet).
Alternately, down at the craft store (and some hobby shops) they will have "Annealed Steel Wire" down to arounf 28 gauge. The flat head of a pin might be nipped off for a contact (if it's magnetic).
(Magnets are very helpful in ship modeling, particualry is you forget to build a mounting point into the hull before closing up same; not bad for sub-assemblies, either.)