Just about anything horror-film related. My house is stacked with movie posters, horror action figures, etc.

Comics and RPGs.

I have quite a few action figures at my desk, but they're out of the packaging and thrown around too much to really be collectibles.

Besides dust? I have several little collections of things, nothing extremely organized: mint tins, small boxes, postcards/stationery, cheap pens from hotels, matches.

On the more organized side, I do have a small collection of Southwest pottery miniatures and storyteller figurines, and one small Navajo rug [a Ganado/Storm hybrid].

We also have various Simpsons collectibles and some diecast Futurama figures.

Fingernail polish. No lie. It's my fetish. Well, one of them. But, not only do I have lots of little bottles and not only do I love to wear it for the right (and not so right) occasion, I also use it to paint my bicycle.

Sheet music. From the 30s and 40s only. Songs from the pre-war and WWII era.

Mardi gras beads. Lots of 'em.

Those are what I collect intentionally. I won't go into what I collect unintentionally.

I don't really have a large collection of anything in particular. I like canes, cudgels, staves, walking sticks. I don't have very many though.

I have a GIANT collection of rusty metal that I've picked up off the street for the past three or four years. Under my window is a collection of cool looking bottles, be they colorful, strangely shaped or with bright labels! (I can tell you when recycle day is for half of River Edge! ¦-) Since I can't BLOW UP my darned fireworks, they just seem to keep collecting in the other corner of my room. I'm also into puzzles of most sorts: wooden take apart puzzles, secret compartment boxes, remove the ring type things, etc., so there are about thirty of them currently decorating my computer desk! Other stuff, as well, but this is what I'm proud of!