Can you get these in any old hi-fi shop, or are they a bit harder to come buy? I could use over-long screws, but they don't exactly look nice do they? I've just built a natty little stand for the left-hand front speaker in the home cinema setup (the front right being on a shelf in the TV cabinet/unit/monstrosity thing), and the only thing it needs is a set of spikes. I'll add the spikes, then swap the top plate for some meaty MDF for better damping, and that should be that. But whre d'ya get the spikes from.