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Artistic associations with the sculptor who invented the mobile make this one of the more creative surname choices.

This anglicized form of the Irish surname Ó Cathaláin links back to the Irish given name, Cathal. Similar to Callum, Caleb, and Calvin, it might feel more usable outside of Ireland and Scotland than its origin name.

Calloway is one of those irresistibly jaunty, animated three-syllable surnames, like Sullivan and Finnegan — but this one has the added attraction of jazzy ties to the immortal "Dean of American Jive," Cab Calloway.

Cedar is, like Ash, Oak, Pine and Ebony, one of the new tree/wood names that parents are starting to consider; this one is particularly aromatic.

Clay is a rich, earthy one-syllable name with a southern-inflected handsome-rogue image, featured on soap operas and reality TV. Its longer forms are Clayton and Clayborne.

Clayton is one of those names that feels like it could be recently popular but does in fact have a long history of use. It has made the US Top 400 every year since the records began, and though more recently it has been in decline, it is still given to more than 1000 babies every year

Clover is a charming, perky choice if you want to move beyond hothouse blooms like Rose and Lily, and it's recently become a new celeb favorite, chosen by both Neal McDonough and Natasha Gregson Wagner, who used it to honor her mother, Natalie Wood, one of whose most iconic films was Inside Daisy Clover.

Even though in the past Clyde may have been identified as half of the infamous outlaw duo with partner Bonnie Parker—especially after the 1967 movie in which he was played by Warren Beatty—Clyde has always had an element of jazzy cool that could overcome all the rest.

The genial yet upscale and preppy Cooper was one of the first occupational last names to catch on -- and Cooper remains a pleasing option.

With its sharp, succinct sounds and cool, laidback style, Eli is a popular choice among parents today. Compact and punchy, it is a Biblical name with plenty of charm.

Ellis is a former Old Man Name turned gender-neutral choice for the 21st century. It's one of the less used names in the currently popular El-family.

Bird name possibility, rarer than Lark and Wren but with the same short, punchy feel.

The most enduringly popular hero of Irish myth was Finn McCool, whose name is one of the coolest ever. When used for the female protagonist of How to Make an American Quilt, Finn established its hipness for girls as well.

As a member of two trendy name categories, animal and occupational, this name broke into the Top 1000 in 2004 and would make a nice tribute to an angler Grandpa.

Former cool-boy name now in middle-aged limbo, but with a nice naturey meaning to endear it to modern parents.

Gus is a homey grandpa nickname name that can work as a short form for any of the above or stand on its own as a cutting-edge replacement for Max and Jake--though it was off the Top 1000 from 1978 until 2016, when it squeaked in at Number 999.

Harper got its start as a celebrity baby name when Paul Simon chose it for his now-grown son. Since then, other famous parents have followed suit: musician Tim Finn and actor Cecilia Peck both have sons called Harper.