If this was on AIBU then fair enough, but Bucksfizz seems to actually quite like the idea, so why should it be considered a problem? The best cakes I have ever had in a work context were made by a man (great tasting and fabulously decorated too).
I made a really fab gingerbread cake to take in to work, which is a nice less sweet (and quite forgiving) cake. Does require stem ginger to make it work though. Otherwise Christmas Logs are not that hard, you use a nice chocolate sponge recipe in a flat tin (the sort of tin you use for cookies). The key is to roll it up in a sugared tea towel whilst it is still warm and flexible. Then once it is cool, you unroll, spread with a delicious filling and roll up again. Easier than a normal round cake IME and good for more of a "celebratory statement" if that's what you are after.
I always bring something in to say thank you to my team at Christmas, especially those who have to be there over Christmas. Sometimes it has been made by my children - is that equally bad?
I can dig out recipes for the above if you like, and also for freezer biscuits (the easier biscuits in the world, as you don't have to use cookie cutters or anything, and you can make loads and freeze for another day).