Else what's a heaven for?

Last year I didn't realize how important Halloween is to my family of choice and got caught flat-footed, which meant I was scrambling the day before, which is why I ended up wearing an ao dai and long underwear. Every year, Jon's ex and child hand out candy for a few hours at a friend's house, which is part of a HUGE block of candy giving - this is what happens when you have the US's highest concentration of under-2yos - and then there's a party at another friend's house, where the child is the GOH.

Originally my best ideas for this Halloween were Leda (except I'm not having twins and may smack the next person who suggests it) and Olympias. The latter is a) probably too subtle (most of the other mums at the party last year wore goth wear and/or sexy witch costumes) and b) we're only 95% sure what we're naming the child, although Jon would get to show off his sexy legs in a Zeus costume. Also, it dawned on me that it might be a little obnoxious to the ex and the child? I dunno.

(I'm still traumatized by the Halloween when I was a tween and dressed as Lucy from the Narnia books and won a prize for funniest costume, bc I assume the adult who was awarding prizes had no freakin' clue who I was because this was decades before the movies and some people suck at reading.)

After seeing the top cartoon on this page (h/t: lolitasir) this morning, I'm tempted to get/borrow a smoking jacket and go as a plutocrat or maybe as Rich Uncle Pennybags if I'm really motivated, although drag is likely to scandalize the other parents and cause gossip. Although it is Brooklyn...

What do you, my clever Internet friends, suggest for this opportunity? I'm leaning toward dressing as a famous mother, rather than doing something odd to my stomach (although that basketball player costume is cute).