I started collecting old woodworking hand planes, but they're not just to look at. I also use them. After I while I grew tired of collecting them, and stopped buying every one I found. I do still have quite a few though.

I collect fish and love displaying them.

I used to collect pressed pennies, but they seem to harder to find now.

Pigs. It started with a hand-carved wooden pig with wings, wearing a Santa Suit. They've all been gifts. One of my nephews gets me the same birthday card every year. "If you're happy and you know it, clamp your hams." It's a fairly small collection, but it's the only knick-knacky type thing I do, and it's actually completely out of character.

I collect books on organized crime and lost baby items I find on the ground...rattles, bottles, bibs,pacifiers, toys- you name it...very funny story about how this started....I just wanted a collection nobody else in the world would have...it's in a box in the other room.

I used to collect die-cast cars; still have a few. That started mainly because a house I once bought had a room with shelves covering half of one wall and I needed something to put on them.

switchblades C:

I used to display it, but I learned that human skulls make people feel uneasy.

A good old classic scotch colletion never fails to have around

I used to collect a lot of things: old pulp science fiction magazines, WW2 German militaria, comic books, anything to do with the TV show "Lost in Space." and so on. And then I realized that all of these great things were just boxed away (being out in the open can fade colors, making it all less valuable, after all). Occasionally, I would look st my stuff briefly, before boxing it all up again. One day I realized this was crazy, and I started selling the stuff off. Whenever someone asks about collecting stuff, I always say "My collection consists of what I haven't sold yet." If I got back into collecting, I'd collect Soviet or East German militaria, because the stuff looks interesting, the prices are relatively low, and because it's all so common, there are hardly any fakes on the market.

Broken hearts.... Lol Just kidding, I don't collect anything. Eventually everything starts irritating me, and I throw all the junk away

I used to collect glass bottles and kept them on a shelf in the front room before my ex wife put an end to it. I had an unopened coke bottle from Iran from my brother's deployment. Recently I've been turning bottle caps from drinks I like into magnets on my fridge.

brass bells in the shape of girls , blue china plates with depictions of life and paintings and yes they are proudly diplayed

I used to collect comic books. I haven't in a long time. I still have boxes of old ones that I am giving to my nephew. They are probably worth some money.

teapots

I have a collection of split bamboo fly rods. And several banjos, both 4 string and 5 string.

On my lazy days, I am known to collect dust. It is really easy to do if you can remain still for long periods of time.

Shot glasses. Only a portion of the collection is on display at any given time.

I used to collect stamps. Well, I say that, but I was actually just given a bag of stamps as a kid and given a suggestion by my mother to start collecting. I never added a single new stamp.

Yes. I have a collection of teacups; were bought in the places I visited and the only rule is that they must be made in England. My second collection is made of about 700 magnets; they represent every item in a household and also were bought in places I visited. I display both collections

Records and they are on full display in my living room. I also collect dog fur, as in the shedded dog fur from my lab and pug

My teacups

My magnets

I seem to collect musical instruments. I'm slightly embarrassed about it so I don't really display them as such but I do have a music room where I practice and we play in there when mates come around.
I play a few different instruments but I seem to have multiples 2 flutes, 2 banjos 3 ukulele, 3 concertinas, 2 fiddles, 4 melodeons, assorted whistles....
And that's not even a complete list.... it's a relatively harmless symptom of my bipolar disorder

Pens and headphones. No, I don't display them. Lol.