Christmas Challenge 2011

The Rules

The Spanner Christmas Challenge 2011 is to build a Meccano model according to the following conditions:

1) Up to 20 Meccano parts may be used excepting the following for which any quantity may be used:

a) Nuts, bolts and washers
b) driving bands
c) string or cord
d) spring clips

2) Any Meccano parts from between 1901 and 2011

3) No parts may be used that weren't designed by the Meccano Company (Frank Hornby's or any successor)

4) Manual models are not allowed

The rules were suggested by Guy Kind and formalised by Roger Thorpe. 

For clarification, a Meccano branded motor does count as a Meccano part.  Power supplies and cabling, however, don't count as parts and are allowed gratis.

Guy's rule clarification No.1: You can't break up a part into its components (for example, if you use a GRB you have to use it as a GRB, not just as a cheap way of 'buying' small flanged wheels.  If you use a 140 you have to use it as a universal coupling, not half of it in one part of the model and half in another part).
Entries

Post your entries on Spanner or directly to the Christmas Challenge 2011 gallery (or to your personal gallery and send an email to request it be moved).  

The Christmas Challenge closes at midnight on Christmas Eve your local time.  The winner will receive global accolade (well, at least until next year).