These are just singles but are rare ones.
Playboy extreme team
Playboy 50th anniversary
Halloween 2002
Halloween 2006

PB 50th white is the rarest. All those made were long ago swallowed up in collections. You may not see another

In pairs, these 4 would sell for $85 to $200 each. That is an average $70 per die.

I will add these 4 dice to the Charity auction if the bid reaches $300, OR, I would take $120 for the charity separate from the auction.
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