Anyone looking for a long neck, We’ve come along way!
http://atlanta.craigslist.org/eat/bik/4896144278.html
20" Mongoose Squid!
Don’t see many of these around. $25 is dirt cheap for a 20"x3" tire.
I don’t think this comes up often. Wyganowski 10’ giraffe.
http://www.ebay.com/itm/331333207679
Edit: Frame only. Not mine.
http://www.ebay.co.uk/itm/Nimbus-Quax-36-inch-Unicycle-/161716284555?pt=LH_DefaultDomain_3&hash=item25a70aac8b
36er mixed parts
KH 24, only $40
Here’s a KH 24, possibly 26, for $40:
http://charlotte.craigslist.org/bik/4974287299.html
It took more than a few tries but I finally got the poster to send me an image of a non-copyrighted image (he lifted the post image from qbp.com). It looks like a low-end, 16" trainer. It might be worth $40, but he isn’t listing or describing what he has for sale.
Too bad people couldn’t be a little more honest.
Unicycle -29" KH-29 Geared Schlumpf Hub in Southern Calif
I just saw this on Craigslist in Solvang, Calif, for $1200:
That’ll be sold before I finish typing this sentence. A KH29 with a geared hub? What a sweet deal!
Darn, yup it was sold this morning.
Kris holm 24" and 26" eBay US
26 with weird coating starting bid 249.99$ http://www.ebay.com/itm/Kris-Holm-Mountain-Unicycle-Blue-and-Black-26-Gazzaloddi-Tire-Primo-Pedals-/231657515191?hash=item35efdd28b7
24, carbon seat, adjustable seatpost, starting bid 249.99$ http://www.ebay.com/itm/Kris-Holm-Unicycle-24-/281779486059?hash=item419b5dbd6b
Serious wtfage on this one. I don’t get it. This looks like your standard no-brand Chinese unicycle with the awesome green and yellow tire, and it’s listed for US$444.90.
Who in their right mind would pay over four hundred bucks for this? I especially love the totally-not-photoshopped background.
I found the very same uni on my local Craigslist for $25 (which I’m probably buying just because I keep buying unicycles).
Also, anybody else who browses ebay/aliexpress really frustrated by constantly seeing these stupid things?
They’re always advertised as “self balancing unicycles” and always show up in front of actual unicycles. But… they have two wheels… and no seat… and aren’t unicycles. 
But it’s an adjustable cycling bike bicycle cycle! HOLY CRAP! That’s lots of cycles… I’ve seen those on amazon for 50$ haha.
So, remember how I said I found one of these adjustable cycling bike bicycle cycles for sale on Craigslist? Well, of course I had to go try to haggle for it. The guy wanted $50 for it but I told him $25 or nothing. He said $30 was his lowest he could go, and I said goodbye.
A hour later $25 seemed more appealing to him, so now I’m the proud owner of a bonafide adjustable cycling bike bicycle cycle. 
This is obviously the very same unicycle-shaped-object as featured in the eBay post I linked, right down to the bizarre and awesome yellow/green tire. Looks like I just saved myself $419.90. 
I was quite surprised when I rode it from my car to my office door this morning without dying. I even idled on it and the cranks didn’t snap in half.
Later tonight I’m going to take it apart and really document everything that goes into one of these babies, and then write up a review on them. Obviously people are buying them, so it might be a good idea to dissect one and see exactly what you’re getting for $50 on eBay/AliExpress/Amazon.
I actually had one of those as my first uni. They’re tough enough to learn on but not much else. The cranks and saddle eventually broke on mine after another person learned on it.