Darcy, I assume you're talking about for the XL.
Maybe you will find a dealer than can help you out. But, the Sipo is only available in the 29-1/2" long stick of tenon stock. So, they would all have to be cut to size for you by the dealer. You can always get the empty tenon systainer and fill it with Sipo yourself.
I am sorry, I am talking about the regular Domino, you know the little one.