I'd like to try out this creative use of coolant packs for disk drives while my case is still open for urgery (WC etc. ... but after googling around a bit and dragging my weary feet in a few department stores it seems that this particular breed is really hard to come across over here. All I can find is the rigid sort (in a plastic hard case with ridges) that is clearly not adapted for vibration damping and good surface contact.
If anyone has a pointer to a source of this stuff in France (or w. europe by mail order) I'd be happy to know !
Unfortunately, pharmacies (at least here) usually mean mucho euro
In the meantime I've found someone who knows someone who works in a hospital lab, maybe I can scavenge a couple that way (as the original poster did, I think)...