8's are rare and some macs have issues with them, same with 2's. macs in general since they take non parity and parity 30 pin SIMMs are not that picky about RAM (except the II, IIx models that need composite SIMM).

I don't understand what you mean by marketability/profitability of 16MB SIMMs, if money is no object and you don't care about selling them then ANYTHING is possible to make, they were commidity RAM and the specs are out there. All I was trying to say is you can find them cheaper then it would cost to make them so there isn't a market for them.