I collect books. Majority of them are paperback fantasy and sci-fi. Some of the Highlights are two Choose Your Own Adventure #2 and #97. How Fishes Live, Space Wars Fact & Fiction, a damaged copy of the US Airmans Handbook from WWII, 4 graphic intensive books that skew to the comedic side in order to teach people how to use a computer, and many more. The books fall along whatever interest I have. So I have quite a bit of military sci-fi from when I was into it, but now I've started going after superhero & superpower novels and books so I have those. Then there are the gaming books. I have about 3/5ths of all the Battletech Game books (about 3/4ths of the novels), almost all of Mutants & Masterminds 2nd Edition, and about 3/5ths of all the Palladium Game books(Rifts, Robotech, etc...)
And I have started a book end collection to go with my books. I have 7.5 sets of bookends so far and it's only going to go up as I find more cool bookends.
I also have my knick knack collection I use for decorations. These are trinkets that are really good for decoration purposes... at least I think so.
20+ metal puzzles
15+ wood puzzles
5+ plastic puzzles
5+ slinky's
3 music box movements
1 kazoo
1 insect eye
4 Wood boxes with designs on them
A number of Casino Die from Vegas
A hopscotch token
2 Rubber Poppers(The ones where you invert them, set them down, and then they pop up as they un-invert themselves)
Miscellaneous award coins from work
Ceramic/Glassware:
A vase I made in Elementary School
A ceramic pumpkin I made in High School
1 vase that my grandmother made when I was a child that I now still have.
6 large glass bottles(larger than 2 liters of volume inside)
5 Flower Arrangments I have made and their vases.
1 Glass Blackbird that is well black.
1 Glass swan
1 small Glass dove
1 Glass bottle I bought when I was 8 for 3 dollars because I knocked it onto a concrete floor and it didn't break and I was impressed by that and I've had it since.
1 Glass Tray I use as a place to toss my keys and a matching style glass cup I use for when I make jewelry and need to take a picture and hang the jewelry off of it.
Then there's my sword/blade collection. I got about 2/3rds of these from a fellow Aspie when he moved out west to the wonderful state of California and didn't want to drive with a trunkload of swords.
4 Katana
1 Wakizashi
3 Jian
1 Dagger
1 bastard sword(It has a dragons claw that's supposed to hold a red plastic sphere for the pommel)
2 one-handed long swords(Viking/Norse style, one is a replica, the other is usable)
1 two handed broadsword(Some fantasy style production)
3 Machete
5 large knives
4 small knives(Pocket Knives, including one swiss army knife somewhere)
I also have one Viking/Norse style shield I built, and a replica Viking berserker helmet.
I'm looking next to get a rapier.