I use stainless steel Soler Points on my speakers. They are great. The local shop here stocks many sizes, but Ed Soler is a local to the shop so it's easy to have him make them to order. The ones I had made for my speakers are about two inches at the base and about two and a half inches tall if I recall correctly. I provided him with one of the spikes that came with the speaker so he could match the threads. Spikes like mine are not cheap at $60 each, but they are proportioned perfectly for my speakers, the point is very sharp, they look great, and they work great.
