This one made me chuckle – a ‘unicycle trike’ no less, and according to the description is is a “great looking bike” – just to cover the whole uni/bi/tri gamut… All for the princely sum of 275 Great British Pounds – me thinks that I shall pass on this 
https://www.ebay.co.uk/itm/133420263726?hash=item1f1077a92e:g:AB4AAOSwz8NbhAGv
Looks beautiful, I’m just curious what makes it a unicycle…
It looks like it has been made from unicycles
Oh, could be, I didn’t look closely
Sold.
36 inch Nightfox, $500, El Dorado Hills (near Sacramento, California) Unicycle 36 inch - bicycles - by owner - bike sale
Nimbus Nightfox 36" with dual-hole KH Spirits on Ebay.
Looks like a $599 starting bid with free economy shipping within the U.S.
https://www.ebay.com/itm/284323412483?hash=item4232fefa03:g:wG0AAOSwcNRgvXg5
Group of 4 unicycles, 2 Nimbus, 2 KH 20 inch, wants to sell as a group, $600, Reno Nevada: Kris Holm & Nimbus Unicycle Group - bicycles - by owner - bike sale
There is a Hatchet for sale in Switzerland. The auction is on for another hour or so. I’m interested but it’s more than I’m willing to spend…
https://www.ricardo.ch/de/a/einrad-muni-nimbus-hatchet-1179368916/
It seems a bit OP. You can buy one new or even 2 used for the same price
yep, that’s why I didn’t buy it myself. 
You have a gift for understatement.
Here’s another one that made me laugh – two unicycles for sale together with a starting bid of £45 — or the description says they’ll sell separately for £20 each. Mmmm?
https://www.ebay.co.uk/itm/203598642870?hash=item2f676cbeb6:g:-BAAAOSwy9thMJGf