They are hosting their very own advent calendar on YouTube in a countdown to the game, pitting two players against each other in a string of daily challenges.
Kitted out in boxing gloves to mark the match, things get messy for David Denton and Sean Kennedy in a spaghetti-eating competition while Ross Ford and Tom Brown struggle to bear fruit in a banana-peeling play-off.
Nick De Luca is unravelled by Alasdair Dickinson in a gift-wrapping race and in Tuesday's match-up, James Hilterbrand is caught short making festive cocktails.
And with themes such as ping pong and crackers still on the cards, supporters can enter a prize draw by voting on who they believe will win the next challenge at http://www.edinburghrugby.org/edinburgh-rugby-boxing-day-derby-head-heads.
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