Heavy metal beads are great for making tilt sensors. They can be used in combination with smaller metal beads or non-conductive glass, plastic or ceramic beads.
You can also make your own conductive beads, either by shaping them from some stiff metal wire and possibly soldering them to add enough solder to make them heavy. One can also sew around a regular bead with some conductive thread.
Suppliers
heavy metal beads >> http://www.thebeadparlor.com/heavy_metal_beads.htm (USA)
>> http://www.justbeads.co.uk/metal-beads-c-47.html (UK)
>> http://www.bijouxbeads.co.uk/acatalog/copy_of_Metal_Beads.html (UK)
>> http://www.beadsbydesign.co.uk/metal-beads–bali-style-beads–spacers-132-c.asp (UK)
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