Actirasty is the name given to those who are sexually aroused by the suns rays, i.e. people who are far too into sunbathing. It's the most common of the weather-related fetishes (there are quite a few, apparently), these people prefer outdoor sex in the warm, summer sun, meaning that it shares close ties with exhibitionism.
A balloon fetish typically develops at an early age, with many of those who become sexually aroused by balloons saying that their fetish began after watching members of the desirable sex burst them during their sexual development. Balloon fetishists divide themselves into "poppers" and "non-poppers," with the former requiring balloons to burst in order to receive satisfaction, while the others do not. Though not exactly a widely acknowledged fetish, you can find hundreds of videos on YouTube in which women pop balloons while wearing high heels.
A chasmophile is an individual who loves small spaces... like, a lot. Chasmophiles like caves, caverns, crevices, boxes -- basically, if it's a small hole, they're into it.
This one's a bit riskier than the other fetishes listed here. Climacophilia is when someone is sexually aroused by falling down stairs, and though there hasn't been a lot of research into this particular fetish, we'd have to assume that's because if this is what you're into then chances are you're no longer with us.
Basically the ultimate fetish for the narcissist, a katoptronophiliac enjoy having sex or masturbating in front of mirrors. Most famously depicted in the film American Psycho (pictured), a katoptronophiliac may use the mirror in order to simply enjoy watching themselves doing it, or to obsessively critique their performance.
Lithophilia is the love of stones and/or gravel, meaning that when a lithophile visits Stonehenge (pictured), shit's about to go down.
Macrophilia is when an individual has sexual fantasies involving giants, with giantess porn being a surprisingly big demographic. Macrophilia plays on submissive sexual desires in which an individual wants to be dominated or even eaten by a giant woman, with porn revolving around this fetish using special effects (obviously) to replicate this desire.
You may have heard of "furries," but plushophilia specifically revolves around having sexual desires for plush toys. Whereas furries have pretty widespread sexual attractions, from being aroused by cartoon depictions of anthropomorphic cartoon characters to dressing up like an animal, plushophilia only involves plush toys. Autoplushophilia is an off-shoot of this fetish, with it seeing people becoming sexually aroused by the idea of turning into a plush toy.
Psychrophilia is the term used to describe those who become sexually aroused by either being cold or watching others freeze. Coincidentally, it's also used to describe bacteria that thrives at low temperatures.
Stygiophiles are people who get sexually aroused by engaging in kinky sex acts that they believe will send them to Hell. Though less turned on by the sex itself than they are the idea of Hell, Stygiophiles will still be aroused by fire and heat, while many express their desires with online artwork.
Vorarephilia is a paraphilia (a condition involving abnormal sexual desires that err towards the far more extreme side of fetishes) that involves the individual eating being eaten, or partially consumed, by another person or creature. Vorarephiles often imagine themselves as actual food products such as a burger or steak, being eaten by a member of the desired sex.
Xylophilia is the sexual attraction to wood, but not wood as in a solid penis, wood as in that which you can find on a tree. Walks through the forest are presumably a nightmare for anyone going out with a xylophile.