I take requests year-round for holiday dragon breeding, including breeding on Oct 31st, Dec 25th, and Feb 14th. I have a spreadsheet in my signature (click the flashy nhiostrife) with all available holidays and their usual mate. If you are looking for a particular pairing and I can breed it, I am fairly likely to agree to it. I prefer not to do purebreds or holiday x holiday matches though.
I do all of these free of charge! If you must give me something, I love collecting CB skywings, frills, and nhiostrifes.
Trading for codes that spell "HELIX", including the combinations:
Hh4 | Ee3 | Ll | Ii1 | Xx
So I would accept "h3lIx" as much as "4eLiX". Other combinations in the same vein include:
helx9 hlix9 9helx 9hlix hlxn9 hlxnn
and other similarities, caps, and numbers combinations.
Currently the proud owner of (hELI2), (h31lx), (tEL1X), and (hX96u).