ultimatesupercarcollection.com
theultimatesupercarcollection.com
theultimatecarcollection.com
You yourself have a few of these, which proves that there are so many potential combinations that it generally makes them worth very little (as opposed to having something unique like "SupercarCollection.com" etc.
Maybe $xx to $xxx but I honestly doubt you'll sell them at all, sorry. Put them on the marketplaces and see if you get any traffic or offers. Or maybe put a BIN of mid $xxx.
dropshippr.co.uk
Hmm, such names can sell and for ok money, but this is on co.uk. I could see this fetching 3 figures, maybe 4 to the right end user in the UK, but honestly you're "likely" going to have to list this one and get it as visible as possible for years for the rare right end user to come across it. And even then, I'd think $xx to very low $xxx as it's co.uk
rubbishrus.com
What do you envision this being used for? "We are not very good" - what could you sell or market with that opening statement? Sorry, I don't see a sale ever for this one.
sqlinjection.co.uk
This is resolved using prepared statements (MySQLi and PDO), and the issue is gone entirely in newer versions of PHP as the problematic functions are deprecated. It's also on a co.uk.
You could get some value in a short lived time (say 4-5 years until everyone is moved away from the issue) by using Wordpress site with some info and guides and ads. Although I honestly wouldn't as you're starting on a downward path already.
sandstay.com
No idea what this could be used for, sorry. You might have some crazy luck with the nailpolish side of things, but I honestly doubt it'll ever sell.
In general you have bought names which are a little far fetched and creative, and these are nearly always tough to sell, over years and lots of visibility, and even often with no return or sale at all.
As ever with appraisals, they are opinions (even if based from knowledge etc) so feel free to list your domains on marketplaces and believe in them yourself. Tho, you should do some reading on sales figures and see what sells and for what. And don't mistakenly think your names are like others when they are actually not. We all believe in our domain names but we have to be realistic, as our own "hope" is not what sells domains, it is needed but not as much as decent names which other people want to buy
Good luck
