looking for large aluminum dust caps

[colemanyoungerinalaska]

trying to find some. was doing a recone the other day after i glued and clamped the surrounds and spiders i sat an aluminum cone from an eclipse sub over the voice coil to keep stuff out of the gap and thought wow that looks pretty good. also theyre heavier than the poly dustcaps ive been using so i wouldnt have to layer them them as much as ive been doing to add a bit of weight to the cone. so if anybody sees any on the interwebs or something let me know