Not sure about FundOrb ... cool brandable if somebody wanted to design a crowdfunding/vc type site around an orb theme, but unless you're doing that yourself ... shorter version is, pretty much worthless unless you hit up on someone who had that plan already and doesn't want any other domain name than that (0.00000001% chance) or if you wouldn't mind holding onto it for $10 a year until you can start your own. It is a cool name, just no real value in terms of the general domain market.
SexyCoast.com is also a "developer's domain" ie. it sounds cool, is easy to say and spell and remember etc. but is unlikely to garner much of a price on the auction markets. It would make a decent regional directory (pick a coastal area and run with it.) Localised business directories are easy to put together, and adult directories tend to get decent traffic and ad rev. So ... not the best domain in terms of market value, but I assume it's a $10 hand reg domain; slap a $75 site on it and you'll have something that pays its own rent easily. Take it to market a year later with traffic and revenue stats and you will certainly get more for it than it's worth on its own.
Frank