First thought: I now want a full set of big, beefy dice (including your odd-numbered ones) made out of machined aluminum or stainless steel...
Second thought: I think this would be a great way of making the classes a bit further apart; d5 for sorcerers and bards, d7 for druids, d9 for rangers, and so on.
Third thought: I still want a full set of big, beefy dice (including your odd-numbered ones) made out of machined aluminum or stainless steel...