I've said this before, but if you want a way to get FREE champagne bottles go to several hotels NOW and ask if they are having/sponsoring any Christmas or New Years parties and you would like to pick up ALL of their champagne bottles.
You need to buy larger 29mm caps for champagne bottles. Not sure if they are readily available in the states. I couldn't find any here in the UK until I posted here about them and someone linked to a UK mail order supplier.
A two handled capper may work - mine has interchangeable dies inside which are used to grip onto the neck of the bottle. I need to swap to the larger ones to get a clean cap on champagne bottles.
The 29mm caps are also good for the big 75cl Hoegaarden bottles
__________________ In Primary: Elderberry port
In Secondary: Bock Bier
On tap Burton Bridge Summer Ale
In Bottles: Darth's Imperial Stout Belgian Grand Cru Belgian Trippel Belgian Abbey Raspbeery Wheat Ginger Beer IPA '04 Cider