Well, this is genuinely outing if anyone on here has ever been to my house.
Oh dear. So many. My house looks like a scifi obsessed 10 year old was given free rein and an unlimited budget to decorate.
I collect vintage robots and ray guns. So I have a bookcase full of robots and a wall of ray guns to start with. And some mini shelves with my favourite mini-robot/pacman/space rocket wind up toys on them.
Other tat includes hideous dolls and a CocaCola boy money box that are the stuff of all right thinking people's nightmares.
A 2.5 foot high orange plastic light in the shape of a giant gummy bear.
Fairly lights of various types including mine and DD's names.
A fucking massive x-wing.
Vintage toys from favourite cartoons including Thundercats and She-ra (Princess of Power!). Loads of Marvel/DC knick-knacks including my much prized Wonder Woman shield that has discs in it I can shoot at my 12 year old when she annoys me.
So many childish mugs.
Bedside lamp that is a light up spaceman. Tetris light.
LEGO collection (though that is one of my DD's rooms so it sort of looks like it's hers, a bit of it is, most of it is mine).
I'm currently wearing customised Vans that were my 40th birthday present. They have a print of ray guns on them.
My birthday card from DP is still up, as it is a customised Spider-Man one and it makes me very happy.
I also have a poster that needs framing for the top of the stairs that says 'Always be yourself, unless you can be Spider-Man, then always be Spider-Man' on it.
This is not an exhaustive list. I am 40.