There is one around from Travelzoo UK, £5 each way, i.e. £10 rtn. It covers the following routes, maybe you're lucky and yours is among them:
LTN-SXF
LTN-HAM
STN-MUC
LTN-ZRH
LGW-CGN
Book by 01/12/09, valid from 8 December until end of March.
The code is: EJZOO22009
Cheers!